Home / 624,254.72-861,154.13-379,174.25

Finding the Fourth Proportional to 624,254.72, 861,154.13 and 379,174.25

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Solution

The fourth proportional to 624,254.72, 861,154.13 and 379,174.25 is: 523,067.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,254.72 : 861,154.13 = 379,174.25 : x
  2. Step 2: Convert to fraction form
    624,254.72/861,154.13 = 379,174.25/x
  3. Step 3: Cross multiply
    624,254.72x = 861,154.13 × 379,174.25
  4. Step 4: Simplify right side
    624,254.72x = 326,527,474,477.97
  5. Step 5: Solve for x
    x = 326,527,474,477.97/624,254.72
  6. Step 6: Final answer
    x = 523,067.69

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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.