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Finding the Fourth Proportional to 573,293.70, 859,940.55 and 384,336.90

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Solution

The fourth proportional to 573,293.70, 859,940.55 and 384,336.90 is: 576,505.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,293.70 : 859,940.55 = 384,336.90 : x
  2. Step 2: Convert to fraction form
    573,293.70/859,940.55 = 384,336.90/x
  3. Step 3: Cross multiply
    573,293.70x = 859,940.55 × 384,336.90
  4. Step 4: Simplify right side
    573,293.70x = 330,506,885,171.30
  5. Step 5: Solve for x
    x = 330,506,885,171.30/573,293.70
  6. Step 6: Final answer
    x = 576,505.35

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Double scale
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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.