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Finding the Fourth Proportional to 456,099.60, 684,149.40 and 231,373.20

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Solution

The fourth proportional to 456,099.60, 684,149.40 and 231,373.20 is: 347,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,099.60 : 684,149.40 = 231,373.20 : x
  2. Step 2: Convert to fraction form
    456,099.60/684,149.40 = 231,373.20/x
  3. Step 3: Cross multiply
    456,099.60x = 684,149.40 × 231,373.20
  4. Step 4: Simplify right side
    456,099.60x = 158,293,835,956.08
  5. Step 5: Solve for x
    x = 158,293,835,956.08/456,099.60
  6. Step 6: Final answer
    x = 347,059.80

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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.