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Finding the Fourth Proportional to 539,593.70, 809,617.35 and 289,984.10

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Solution

The fourth proportional to 539,593.70, 809,617.35 and 289,984.10 is: 435,098.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,593.70 : 809,617.35 = 289,984.10 : x
  2. Step 2: Convert to fraction form
    539,593.70/809,617.35 = 289,984.10/x
  3. Step 3: Cross multiply
    539,593.70x = 809,617.35 × 289,984.10
  4. Step 4: Simplify right side
    539,593.70x = 234,776,158,584.14
  5. Step 5: Solve for x
    x = 234,776,158,584.14/539,593.70
  6. Step 6: Final answer
    x = 435,098.04

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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.