Home / 621,909.18-932,930.44-172,631.95

Finding the Fourth Proportional to 621,909.18, 932,930.44 and 172,631.95

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Solution

The fourth proportional to 621,909.18, 932,930.44 and 172,631.95 is: 258,966.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,909.18 : 932,930.44 = 172,631.95 : x
  2. Step 2: Convert to fraction form
    621,909.18/932,930.44 = 172,631.95/x
  3. Step 3: Cross multiply
    621,909.18x = 932,930.44 × 172,631.95
  4. Step 4: Simplify right side
    621,909.18x = 161,053,601,071.56
  5. Step 5: Solve for x
    x = 161,053,601,071.56/621,909.18
  6. Step 6: Final answer
    x = 258,966.43

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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.