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Finding the Fourth Proportional to 572,327.40, 858,491.10 and 151,645.80

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Solution

The fourth proportional to 572,327.40, 858,491.10 and 151,645.80 is: 227,468.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,327.40 : 858,491.10 = 151,645.80 : x
  2. Step 2: Convert to fraction form
    572,327.40/858,491.10 = 151,645.80/x
  3. Step 3: Cross multiply
    572,327.40x = 858,491.10 × 151,645.80
  4. Step 4: Simplify right side
    572,327.40x = 130,186,569,652.38
  5. Step 5: Solve for x
    x = 130,186,569,652.38/572,327.40
  6. Step 6: Final answer
    x = 227,468.70

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.