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Finding the Fourth Proportional to 684,198.45, 944,191.49 and 382,392.45

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Solution

The fourth proportional to 684,198.45, 944,191.49 and 382,392.45 is: 527,700.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,198.45 : 944,191.49 = 382,392.45 : x
  2. Step 2: Convert to fraction form
    684,198.45/944,191.49 = 382,392.45/x
  3. Step 3: Cross multiply
    684,198.45x = 944,191.49 × 382,392.45
  4. Step 4: Simplify right side
    684,198.45x = 361,051,690,497.33
  5. Step 5: Solve for x
    x = 361,051,690,497.33/684,198.45
  6. Step 6: Final answer
    x = 527,700.25

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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.