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Finding the Fourth Proportional to 700,906.12, 967,249.70 and 378,616.18

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Solution

The fourth proportional to 700,906.12, 967,249.70 and 378,616.18 is: 522,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,906.12 : 967,249.70 = 378,616.18 : x
  2. Step 2: Convert to fraction form
    700,906.12/967,249.70 = 378,616.18/x
  3. Step 3: Cross multiply
    700,906.12x = 967,249.70 × 378,616.18
  4. Step 4: Simplify right side
    700,906.12x = 366,216,386,520.15
  5. Step 5: Solve for x
    x = 366,216,386,520.15/700,906.12
  6. Step 6: Final answer
    x = 522,489.93

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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.