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Finding the Fourth Proportional to 642,760.22, 963,838.13 and 237,672.54

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Solution

The fourth proportional to 642,760.22, 963,838.13 and 237,672.54 is: 356,397.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,760.22 : 963,838.13 = 237,672.54 : x
  2. Step 2: Convert to fraction form
    642,760.22/963,838.13 = 237,672.54/x
  3. Step 3: Cross multiply
    642,760.22x = 963,838.13 × 237,672.54
  4. Step 4: Simplify right side
    642,760.22x = 229,077,856,505.95
  5. Step 5: Solve for x
    x = 229,077,856,505.95/642,760.22
  6. Step 6: Final answer
    x = 356,397.07

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1.5x scale

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.