Home / 476,044.92-656,769.56-312,789.25

Finding the Fourth Proportional to 476,044.92, 656,769.56 and 312,789.25

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Solution

The fourth proportional to 476,044.92, 656,769.56 and 312,789.25 is: 431,535.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,044.92 : 656,769.56 = 312,789.25 : x
  2. Step 2: Convert to fraction form
    476,044.92/656,769.56 = 312,789.25/x
  3. Step 3: Cross multiply
    476,044.92x = 656,769.56 × 312,789.25
  4. Step 4: Simplify right side
    476,044.92x = 205,430,458,095.23
  5. Step 5: Solve for x
    x = 205,430,458,095.23/476,044.92
  6. Step 6: Final answer
    x = 431,535.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.