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Finding the Fourth Proportional to 484,838.97, 727,299.90 and 147,955.38

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Solution

The fourth proportional to 484,838.97, 727,299.90 and 147,955.38 is: 221,945.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,838.97 : 727,299.90 = 147,955.38 : x
  2. Step 2: Convert to fraction form
    484,838.97/727,299.90 = 147,955.38/x
  3. Step 3: Cross multiply
    484,838.97x = 727,299.90 × 147,955.38
  4. Step 4: Simplify right side
    484,838.97x = 107,607,933,078.46
  5. Step 5: Solve for x
    x = 107,607,933,078.46/484,838.97
  6. Step 6: Final answer
    x = 221,945.72

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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.