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Finding the Fourth Proportional to 378,168.54, 522,006.30 and 337,812.18

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Solution

The fourth proportional to 378,168.54, 522,006.30 and 337,812.18 is: 466,300.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,168.54 : 522,006.30 = 337,812.18 : x
  2. Step 2: Convert to fraction form
    378,168.54/522,006.30 = 337,812.18/x
  3. Step 3: Cross multiply
    378,168.54x = 522,006.30 × 337,812.18
  4. Step 4: Simplify right side
    378,168.54x = 176,340,086,176.73
  5. Step 5: Solve for x
    x = 176,340,086,176.73/378,168.54
  6. Step 6: Final answer
    x = 466,300.25

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1.5x scale

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.