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Finding the Fourth Proportional to 709,751.20, 1,062,877.20 and 471,805.60

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Solution

The fourth proportional to 709,751.20, 1,062,877.20 and 471,805.60 is: 706,545.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,751.20 : 1,062,877.20 = 471,805.60 : x
  2. Step 2: Convert to fraction form
    709,751.20/1,062,877.20 = 471,805.60/x
  3. Step 3: Cross multiply
    709,751.20x = 1,062,877.20 × 471,805.60
  4. Step 4: Simplify right side
    709,751.20x = 501,471,415,072.32
  5. Step 5: Solve for x
    x = 501,471,415,072.32/709,751.20
  6. Step 6: Final answer
    x = 706,545.36

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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.