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Finding the Fourth Proportional to 625,057.25, 862,527.87 and 353,148.75

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Solution

The fourth proportional to 625,057.25, 862,527.87 and 353,148.75 is: 487,316.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,057.25 : 862,527.87 = 353,148.75 : x
  2. Step 2: Convert to fraction form
    625,057.25/862,527.87 = 353,148.75/x
  3. Step 3: Cross multiply
    625,057.25x = 862,527.87 × 353,148.75
  4. Step 4: Simplify right side
    625,057.25x = 304,600,639,130.66
  5. Step 5: Solve for x
    x = 304,600,639,130.66/625,057.25
  6. Step 6: Final answer
    x = 487,316.39

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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.