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Finding the Fourth Proportional to 338,695.60, 508,127.76 and 239,050.24

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Solution

The fourth proportional to 338,695.60, 508,127.76 and 239,050.24 is: 358,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,695.60 : 508,127.76 = 239,050.24 : x
  2. Step 2: Convert to fraction form
    338,695.60/508,127.76 = 239,050.24/x
  3. Step 3: Cross multiply
    338,695.60x = 508,127.76 × 239,050.24
  4. Step 4: Simplify right side
    338,695.60x = 121,468,062,978.66
  5. Step 5: Solve for x
    x = 121,468,062,978.66/338,695.60
  6. Step 6: Final answer
    x = 358,634.90

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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.