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Finding the Fourth Proportional to 361,332.46, 498,721.62 and 240,478.84

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Solution

The fourth proportional to 361,332.46, 498,721.62 and 240,478.84 is: 331,915.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,332.46 : 498,721.62 = 240,478.84 : x
  2. Step 2: Convert to fraction form
    361,332.46/498,721.62 = 240,478.84/x
  3. Step 3: Cross multiply
    361,332.46x = 498,721.62 × 240,478.84
  4. Step 4: Simplify right side
    361,332.46x = 119,931,996,660.52
  5. Step 5: Solve for x
    x = 119,931,996,660.52/361,332.46
  6. Step 6: Final answer
    x = 331,915.92

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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.