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Finding the Fourth Proportional to 629,856,543.60, 944,784,815.40 and 549,234,975.60

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Solution

The fourth proportional to 629,856,543.60, 944,784,815.40 and 549,234,975.60 is: 823,852,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,543.60 : 944,784,815.40 = 549,234,975.60 : x
  2. Step 2: Convert to fraction form
    629,856,543.60/944,784,815.40 = 549,234,975.60/x
  3. Step 3: Cross multiply
    629,856,543.60x = 944,784,815.40 × 549,234,975.60
  4. Step 4: Simplify right side
    629,856,543.60x = 518,908,865,033,469,504
  5. Step 5: Solve for x
    x = 518,908,865,033,469,504/629,856,543.60
  6. Step 6: Final answer
    x = 823,852,463.40

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Half scale
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Double scale
Find fourth proportional to 629,856,544.60, 944,784,816.90 and 549,234,976.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.