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Finding the Fourth Proportional to 697,998.06, 963,233.84 and 392,079.15

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Solution

The fourth proportional to 697,998.06, 963,233.84 and 392,079.15 is: 541,067.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,998.06 : 963,233.84 = 392,079.15 : x
  2. Step 2: Convert to fraction form
    697,998.06/963,233.84 = 392,079.15/x
  3. Step 3: Cross multiply
    697,998.06x = 963,233.84 × 392,079.15
  4. Step 4: Simplify right side
    697,998.06x = 377,663,906,218.63
  5. Step 5: Solve for x
    x = 377,663,906,218.63/697,998.06
  6. Step 6: Final answer
    x = 541,067.27

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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.