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Finding the Fourth Proportional to 508,300.92, 762,428.34 and 223,915.41

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Solution

The fourth proportional to 508,300.92, 762,428.34 and 223,915.41 is: 335,862.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,300.92 : 762,428.34 = 223,915.41 : x
  2. Step 2: Convert to fraction form
    508,300.92/762,428.34 = 223,915.41/x
  3. Step 3: Cross multiply
    508,300.92x = 762,428.34 × 223,915.41
  4. Step 4: Simplify right side
    508,300.92x = 170,719,454,346.72
  5. Step 5: Solve for x
    x = 170,719,454,346.72/508,300.92
  6. Step 6: Final answer
    x = 335,862.97

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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.