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Finding the Fourth Proportional to 865,808.88, 1,194,759.13 and 498,226.62

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Solution

The fourth proportional to 865,808.88, 1,194,759.13 and 498,226.62 is: 687,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,808.88 : 1,194,759.13 = 498,226.62 : x
  2. Step 2: Convert to fraction form
    865,808.88/1,194,759.13 = 498,226.62/x
  3. Step 3: Cross multiply
    865,808.88x = 1,194,759.13 × 498,226.62
  4. Step 4: Simplify right side
    865,808.88x = 595,260,798,822.35
  5. Step 5: Solve for x
    x = 595,260,798,822.35/865,808.88
  6. Step 6: Final answer
    x = 687,519.86

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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.