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Finding the Fourth Proportional to 508,122.71, 762,479.30 and 227,639.96

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Solution

The fourth proportional to 508,122.71, 762,479.30 and 227,639.96 is: 341,592.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,122.71 : 762,479.30 = 227,639.96 : x
  2. Step 2: Convert to fraction form
    508,122.71/762,479.30 = 227,639.96/x
  3. Step 3: Cross multiply
    508,122.71x = 762,479.30 × 227,639.96
  4. Step 4: Simplify right side
    508,122.71x = 173,570,754,109.53
  5. Step 5: Solve for x
    x = 173,570,754,109.53/508,122.71
  6. Step 6: Final answer
    x = 341,592.20

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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.