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Finding the Fourth Proportional to 572,538.40, 858,807.60 and 151,856.80

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Solution

The fourth proportional to 572,538.40, 858,807.60 and 151,856.80 is: 227,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,538.40 : 858,807.60 = 151,856.80 : x
  2. Step 2: Convert to fraction form
    572,538.40/858,807.60 = 151,856.80/x
  3. Step 3: Cross multiply
    572,538.40x = 858,807.60 × 151,856.80
  4. Step 4: Simplify right side
    572,538.40x = 130,415,773,951.68
  5. Step 5: Solve for x
    x = 130,415,773,951.68/572,538.40
  6. Step 6: Final answer
    x = 227,785.20

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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.