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Finding the Fourth Proportional to 700,906.25, 967,249.88 and 378,616.30

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Solution

The fourth proportional to 700,906.25, 967,249.88 and 378,616.30 is: 522,490.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,906.25 : 967,249.88 = 378,616.30 : x
  2. Step 2: Convert to fraction form
    700,906.25/967,249.88 = 378,616.30/x
  3. Step 3: Cross multiply
    700,906.25x = 967,249.88 × 378,616.30
  4. Step 4: Simplify right side
    700,906.25x = 366,216,565,904.80
  5. Step 5: Solve for x
    x = 366,216,565,904.80/700,906.25
  6. Step 6: Final answer
    x = 522,490.08

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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.