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Finding the Fourth Proportional to 572,561.10, 858,841.65 and 539,901.90

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Solution

The fourth proportional to 572,561.10, 858,841.65 and 539,901.90 is: 809,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,561.10 : 858,841.65 = 539,901.90 : x
  2. Step 2: Convert to fraction form
    572,561.10/858,841.65 = 539,901.90/x
  3. Step 3: Cross multiply
    572,561.10x = 858,841.65 × 539,901.90
  4. Step 4: Simplify right side
    572,561.10x = 463,690,238,634.14
  5. Step 5: Solve for x
    x = 463,690,238,634.14/572,561.10
  6. Step 6: Final answer
    x = 809,852.85

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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.