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Finding the Fourth Proportional to 572,505.60, 858,758.40 and 336,115.20

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Solution

The fourth proportional to 572,505.60, 858,758.40 and 336,115.20 is: 504,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,505.60 : 858,758.40 = 336,115.20 : x
  2. Step 2: Convert to fraction form
    572,505.60/858,758.40 = 336,115.20/x
  3. Step 3: Cross multiply
    572,505.60x = 858,758.40 × 336,115.20
  4. Step 4: Simplify right side
    572,505.60x = 288,641,751,367.68
  5. Step 5: Solve for x
    x = 288,641,751,367.68/572,505.60
  6. Step 6: Final answer
    x = 504,172.80

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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.