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Finding the Fourth Proportional to 401,712.85, 602,726.10 and 176,915.31

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Solution

The fourth proportional to 401,712.85, 602,726.10 and 176,915.31 is: 265,442.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,712.85 : 602,726.10 = 176,915.31 : x
  2. Step 2: Convert to fraction form
    401,712.85/602,726.10 = 176,915.31/x
  3. Step 3: Cross multiply
    401,712.85x = 602,726.10 × 176,915.31
  4. Step 4: Simplify right side
    401,712.85x = 106,631,474,826.59
  5. Step 5: Solve for x
    x = 106,631,474,826.59/401,712.85
  6. Step 6: Final answer
    x = 265,442.03

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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.