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Finding the Fourth Proportional to 402,076.71, 554,910.14 and 230,010.54

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Solution

The fourth proportional to 402,076.71, 554,910.14 and 230,010.54 is: 317,439.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,076.71 : 554,910.14 = 230,010.54 : x
  2. Step 2: Convert to fraction form
    402,076.71/554,910.14 = 230,010.54/x
  3. Step 3: Cross multiply
    402,076.71x = 554,910.14 × 230,010.54
  4. Step 4: Simplify right side
    402,076.71x = 127,635,179,446.99
  5. Step 5: Solve for x
    x = 127,635,179,446.99/402,076.71
  6. Step 6: Final answer
    x = 317,439.87

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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.