Home / 725,590.31-1,001,308.71-394,444.11

Finding the Fourth Proportional to 725,590.31, 1,001,308.71 and 394,444.11

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Solution

The fourth proportional to 725,590.31, 1,001,308.71 and 394,444.11 is: 544,329.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,590.31 : 1,001,308.71 = 394,444.11 : x
  2. Step 2: Convert to fraction form
    725,590.31/1,001,308.71 = 394,444.11/x
  3. Step 3: Cross multiply
    725,590.31x = 1,001,308.71 × 394,444.11
  4. Step 4: Simplify right side
    725,590.31x = 394,960,322,951.20
  5. Step 5: Solve for x
    x = 394,960,322,951.20/725,590.31
  6. Step 6: Final answer
    x = 544,329.65

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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.