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Finding the Fourth Proportional to 370,287.92, 510,996.56 and 200,521.52

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Solution

The fourth proportional to 370,287.92, 510,996.56 and 200,521.52 is: 276,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,287.92 : 510,996.56 = 200,521.52 : x
  2. Step 2: Convert to fraction form
    370,287.92/510,996.56 = 200,521.52/x
  3. Step 3: Cross multiply
    370,287.92x = 510,996.56 × 200,521.52
  4. Step 4: Simplify right side
    370,287.92x = 102,465,806,925.97
  5. Step 5: Solve for x
    x = 102,465,806,925.97/370,287.92
  6. Step 6: Final answer
    x = 276,719.28

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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.