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Finding the Fourth Proportional to 580,553.28, 868,963.68 and 435,816

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Solution

The fourth proportional to 580,553.28, 868,963.68 and 435,816 is: 652,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,553.28 : 868,963.68 = 435,816 : x
  2. Step 2: Convert to fraction form
    580,553.28/868,963.68 = 435,816/x
  3. Step 3: Cross multiply
    580,553.28x = 868,963.68 × 435,816
  4. Step 4: Simplify right side
    580,553.28x = 378,708,275,162.88
  5. Step 5: Solve for x
    x = 378,708,275,162.88/580,553.28
  6. Step 6: Final answer
    x = 652,323.03

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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.