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Finding the Fourth Proportional to 503,880.60, 755,820.90 and 148,906.20

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Solution

The fourth proportional to 503,880.60, 755,820.90 and 148,906.20 is: 223,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,880.60 : 755,820.90 = 148,906.20 : x
  2. Step 2: Convert to fraction form
    503,880.60/755,820.90 = 148,906.20/x
  3. Step 3: Cross multiply
    503,880.60x = 755,820.90 × 148,906.20
  4. Step 4: Simplify right side
    503,880.60x = 112,546,418,099.58
  5. Step 5: Solve for x
    x = 112,546,418,099.58/503,880.60
  6. Step 6: Final answer
    x = 223,359.30

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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.