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Finding the Fourth Proportional to 700,148.25, 966,147.17 and 394,126.83

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Solution

The fourth proportional to 700,148.25, 966,147.17 and 394,126.83 is: 543,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,148.25 : 966,147.17 = 394,126.83 : x
  2. Step 2: Convert to fraction form
    700,148.25/966,147.17 = 394,126.83/x
  3. Step 3: Cross multiply
    700,148.25x = 966,147.17 × 394,126.83
  4. Step 4: Simplify right side
    700,148.25x = 380,784,519,454.94
  5. Step 5: Solve for x
    x = 380,784,519,454.94/700,148.25
  6. Step 6: Final answer
    x = 543,862.70

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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.