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Finding the Fourth Proportional to 539,905.10, 809,857.65 and 532,031.90

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Solution

The fourth proportional to 539,905.10, 809,857.65 and 532,031.90 is: 798,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,905.10 : 809,857.65 = 532,031.90 : x
  2. Step 2: Convert to fraction form
    539,905.10/809,857.65 = 532,031.90/x
  3. Step 3: Cross multiply
    539,905.10x = 809,857.65 × 532,031.90
  4. Step 4: Simplify right side
    539,905.10x = 430,870,104,259.04
  5. Step 5: Solve for x
    x = 430,870,104,259.04/539,905.10
  6. Step 6: Final answer
    x = 798,047.85

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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.