Home / 679,112.25-937,204.07-377,306.25

Finding the Fourth Proportional to 679,112.25, 937,204.07 and 377,306.25

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Solution

The fourth proportional to 679,112.25, 937,204.07 and 377,306.25 is: 520,698.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,112.25 : 937,204.07 = 377,306.25 : x
  2. Step 2: Convert to fraction form
    679,112.25/937,204.07 = 377,306.25/x
  3. Step 3: Cross multiply
    679,112.25x = 937,204.07 × 377,306.25
  4. Step 4: Simplify right side
    679,112.25x = 353,612,951,249.91
  5. Step 5: Solve for x
    x = 353,612,951,249.91/679,112.25
  6. Step 6: Final answer
    x = 520,698.83

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Double scale
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Similar ratio
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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.