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Finding the Fourth Proportional to 551,611.60, 827,417.40 and 512,245.60

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Solution

The fourth proportional to 551,611.60, 827,417.40 and 512,245.60 is: 768,368.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,611.60 : 827,417.40 = 512,245.60 : x
  2. Step 2: Convert to fraction form
    551,611.60/827,417.40 = 512,245.60/x
  3. Step 3: Cross multiply
    551,611.60x = 827,417.40 × 512,245.60
  4. Step 4: Simplify right side
    551,611.60x = 423,840,922,513.44
  5. Step 5: Solve for x
    x = 423,840,922,513.44/551,611.60
  6. Step 6: Final answer
    x = 768,368.40

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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.