Home / 621,729.45-932,594.09-172,450.31

Finding the Fourth Proportional to 621,729.45, 932,594.09 and 172,450.31

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Solution

The fourth proportional to 621,729.45, 932,594.09 and 172,450.31 is: 258,675.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,729.45 : 932,594.09 = 172,450.31 : x
  2. Step 2: Convert to fraction form
    621,729.45/932,594.09 = 172,450.31/x
  3. Step 3: Cross multiply
    621,729.45x = 932,594.09 × 172,450.31
  4. Step 4: Simplify right side
    621,729.45x = 160,826,141,393.90
  5. Step 5: Solve for x
    x = 160,826,141,393.90/621,729.45
  6. Step 6: Final answer
    x = 258,675.44

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Similar ratio
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1.5x scale

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.