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Finding the Fourth Proportional to 614,388.88, 847,154.28 and 499,352.68

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Solution

The fourth proportional to 614,388.88, 847,154.28 and 499,352.68 is: 688,535.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,388.88 : 847,154.28 = 499,352.68 : x
  2. Step 2: Convert to fraction form
    614,388.88/847,154.28 = 499,352.68/x
  3. Step 3: Cross multiply
    614,388.88x = 847,154.28 × 499,352.68
  4. Step 4: Simplify right side
    614,388.88x = 423,028,760,091.47
  5. Step 5: Solve for x
    x = 423,028,760,091.47/614,388.88
  6. Step 6: Final answer
    x = 688,535.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.