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Finding the Fourth Proportional to 539,042.20, 807,008.10 and 476,834.20

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Solution

The fourth proportional to 539,042.20, 807,008.10 and 476,834.20 is: 713,875.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,042.20 : 807,008.10 = 476,834.20 : x
  2. Step 2: Convert to fraction form
    539,042.20/807,008.10 = 476,834.20/x
  3. Step 3: Cross multiply
    539,042.20x = 807,008.10 × 476,834.20
  4. Step 4: Simplify right side
    539,042.20x = 384,809,061,757.02
  5. Step 5: Solve for x
    x = 384,809,061,757.02/539,042.20
  6. Step 6: Final answer
    x = 713,875.58

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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.