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Finding the Fourth Proportional to 416,107.68, 574,128.72 and 252,760.92

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Solution

The fourth proportional to 416,107.68, 574,128.72 and 252,760.92 is: 348,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,107.68 : 574,128.72 = 252,760.92 : x
  2. Step 2: Convert to fraction form
    416,107.68/574,128.72 = 252,760.92/x
  3. Step 3: Cross multiply
    416,107.68x = 574,128.72 × 252,760.92
  4. Step 4: Simplify right side
    416,107.68x = 145,117,303,465.62
  5. Step 5: Solve for x
    x = 145,117,303,465.62/416,107.68
  6. Step 6: Final answer
    x = 348,749.40

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