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Finding the Fourth Proportional to 561,332.20, 842,282.70 and 245,792.20

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Solution

The fourth proportional to 561,332.20, 842,282.70 and 245,792.20 is: 368,812.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,332.20 : 842,282.70 = 245,792.20 : x
  2. Step 2: Convert to fraction form
    561,332.20/842,282.70 = 245,792.20/x
  3. Step 3: Cross multiply
    561,332.20x = 842,282.70 × 245,792.20
  4. Step 4: Simplify right side
    561,332.20x = 207,026,517,854.94
  5. Step 5: Solve for x
    x = 207,026,517,854.94/561,332.20
  6. Step 6: Final answer
    x = 368,812.83

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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.