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Finding the Fourth Proportional to 454,339.12, 626,992.28 and 250,397.48

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Solution

The fourth proportional to 454,339.12, 626,992.28 and 250,397.48 is: 345,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,339.12 : 626,992.28 = 250,397.48 : x
  2. Step 2: Convert to fraction form
    454,339.12/626,992.28 = 250,397.48/x
  3. Step 3: Cross multiply
    454,339.12x = 626,992.28 × 250,397.48
  4. Step 4: Simplify right side
    454,339.12x = 156,997,286,891.45
  5. Step 5: Solve for x
    x = 156,997,286,891.45/454,339.12
  6. Step 6: Final answer
    x = 345,550.89

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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.