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Finding the Fourth Proportional to 572,404.10, 858,606.15 and 502,420.10

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Solution

The fourth proportional to 572,404.10, 858,606.15 and 502,420.10 is: 753,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,404.10 : 858,606.15 = 502,420.10 : x
  2. Step 2: Convert to fraction form
    572,404.10/858,606.15 = 502,420.10/x
  3. Step 3: Cross multiply
    572,404.10x = 858,606.15 × 502,420.10
  4. Step 4: Simplify right side
    572,404.10x = 431,380,987,743.62
  5. Step 5: Solve for x
    x = 431,380,987,743.62/572,404.10
  6. Step 6: Final answer
    x = 753,630.15

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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.