Home / 621,890.19-932,917.36-217,089.69

Finding the Fourth Proportional to 621,890.19, 932,917.36 and 217,089.69

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Solution

The fourth proportional to 621,890.19, 932,917.36 and 217,089.69 is: 325,663.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,890.19 : 932,917.36 = 217,089.69 : x
  2. Step 2: Convert to fraction form
    621,890.19/932,917.36 = 217,089.69/x
  3. Step 3: Cross multiply
    621,890.19x = 932,917.36 × 217,089.69
  4. Step 4: Simplify right side
    621,890.19x = 202,526,737,149.18
  5. Step 5: Solve for x
    x = 202,526,737,149.18/621,890.19
  6. Step 6: Final answer
    x = 325,663.18

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Double scale
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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.