Home / 621,704.83-932,557.19-172,425.69

Finding the Fourth Proportional to 621,704.83, 932,557.19 and 172,425.69

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Solution

The fourth proportional to 621,704.83, 932,557.19 and 172,425.69 is: 258,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,704.83 : 932,557.19 = 172,425.69 : x
  2. Step 2: Convert to fraction form
    621,704.83/932,557.19 = 172,425.69/x
  3. Step 3: Cross multiply
    621,704.83x = 932,557.19 × 172,425.69
  4. Step 4: Simplify right side
    621,704.83x = 160,796,816,950.21
  5. Step 5: Solve for x
    x = 160,796,816,950.21/621,704.83
  6. Step 6: Final answer
    x = 258,638.52

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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.