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Finding the Fourth Proportional to 567,426.40, 851,139.60 and 251,915.20

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Solution

The fourth proportional to 567,426.40, 851,139.60 and 251,915.20 is: 377,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,426.40 : 851,139.60 = 251,915.20 : x
  2. Step 2: Convert to fraction form
    567,426.40/851,139.60 = 251,915.20/x
  3. Step 3: Cross multiply
    567,426.40x = 851,139.60 × 251,915.20
  4. Step 4: Simplify right side
    567,426.40x = 214,415,002,561.92
  5. Step 5: Solve for x
    x = 214,415,002,561.92/567,426.40
  6. Step 6: Final answer
    x = 377,872.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.