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Finding the Fourth Proportional to 402,570.66, 555,576.54 and 241,422.78

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Solution

The fourth proportional to 402,570.66, 555,576.54 and 241,422.78 is: 333,180.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,570.66 : 555,576.54 = 241,422.78 : x
  2. Step 2: Convert to fraction form
    402,570.66/555,576.54 = 241,422.78/x
  3. Step 3: Cross multiply
    402,570.66x = 555,576.54 × 241,422.78
  4. Step 4: Simplify right side
    402,570.66x = 134,128,832,789.58
  5. Step 5: Solve for x
    x = 134,128,832,789.58/402,570.66
  6. Step 6: Final answer
    x = 333,180.85

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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.