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Finding the Fourth Proportional to 354,938.10, 532,407.15 and 329,277.30

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Solution

The fourth proportional to 354,938.10, 532,407.15 and 329,277.30 is: 493,915.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,938.10 : 532,407.15 = 329,277.30 : x
  2. Step 2: Convert to fraction form
    354,938.10/532,407.15 = 329,277.30/x
  3. Step 3: Cross multiply
    354,938.10x = 532,407.15 × 329,277.30
  4. Step 4: Simplify right side
    354,938.10x = 175,309,588,852.70
  5. Step 5: Solve for x
    x = 175,309,588,852.70/354,938.10
  6. Step 6: Final answer
    x = 493,915.95

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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.