Home / 624,230.76-861,346.10-379,088.04

Finding the Fourth Proportional to 624,230.76, 861,346.10 and 379,088.04

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Solution

The fourth proportional to 624,230.76, 861,346.10 and 379,088.04 is: 523,085.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,230.76 : 861,346.10 = 379,088.04 : x
  2. Step 2: Convert to fraction form
    624,230.76/861,346.10 = 379,088.04/x
  3. Step 3: Cross multiply
    624,230.76x = 861,346.10 × 379,088.04
  4. Step 4: Simplify right side
    624,230.76x = 326,526,002,915.20
  5. Step 5: Solve for x
    x = 326,526,002,915.20/624,230.76
  6. Step 6: Final answer
    x = 523,085.41

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Half scale
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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.