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Finding the Fourth Proportional to 467,736.71, 645,476.70 and 252,876.71

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Solution

The fourth proportional to 467,736.71, 645,476.70 and 252,876.71 is: 348,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,736.71 : 645,476.70 = 252,876.71 : x
  2. Step 2: Convert to fraction form
    467,736.71/645,476.70 = 252,876.71/x
  3. Step 3: Cross multiply
    467,736.71x = 645,476.70 × 252,876.71
  4. Step 4: Simplify right side
    467,736.71x = 163,226,024,277.66
  5. Step 5: Solve for x
    x = 163,226,024,277.66/467,736.71
  6. Step 6: Final answer
    x = 348,969.88

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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.