Home / 591,246.97-815,920.59-319,314.92

Finding the Fourth Proportional to 591,246.97, 815,920.59 and 319,314.92

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Solution

The fourth proportional to 591,246.97, 815,920.59 and 319,314.92 is: 440,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,246.97 : 815,920.59 = 319,314.92 : x
  2. Step 2: Convert to fraction form
    591,246.97/815,920.59 = 319,314.92/x
  3. Step 3: Cross multiply
    591,246.97x = 815,920.59 × 319,314.92
  4. Step 4: Simplify right side
    591,246.97x = 260,535,617,922.20
  5. Step 5: Solve for x
    x = 260,535,617,922.20/591,246.97
  6. Step 6: Final answer
    x = 440,654.47

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Double scale
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1.5x scale

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.