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Finding the Fourth Proportional to 473,865.28, 653,510.82 and 393,165.04

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Solution

The fourth proportional to 473,865.28, 653,510.82 and 393,165.04 is: 542,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,865.28 : 653,510.82 = 393,165.04 : x
  2. Step 2: Convert to fraction form
    473,865.28/653,510.82 = 393,165.04/x
  3. Step 3: Cross multiply
    473,865.28x = 653,510.82 × 393,165.04
  4. Step 4: Simplify right side
    473,865.28x = 256,937,607,685.73
  5. Step 5: Solve for x
    x = 256,937,607,685.73/473,865.28
  6. Step 6: Final answer
    x = 542,216.57

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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.