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Finding the Fourth Proportional to 447,718.40, 672,355.20 and 237,766.40

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Solution

The fourth proportional to 447,718.40, 672,355.20 and 237,766.40 is: 357,062.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,718.40 : 672,355.20 = 237,766.40 : x
  2. Step 2: Convert to fraction form
    447,718.40/672,355.20 = 237,766.40/x
  3. Step 3: Cross multiply
    447,718.40x = 672,355.20 × 237,766.40
  4. Step 4: Simplify right side
    447,718.40x = 159,863,475,425.28
  5. Step 5: Solve for x
    x = 159,863,475,425.28/447,718.40
  6. Step 6: Final answer
    x = 357,062.55

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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.