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Finding the Fourth Proportional to 865,937.32, 1,194,990.50 and 483,964.10

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Solution

The fourth proportional to 865,937.32, 1,194,990.50 and 483,964.10 is: 667,868.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,937.32 : 1,194,990.50 = 483,964.10 : x
  2. Step 2: Convert to fraction form
    865,937.32/1,194,990.50 = 483,964.10/x
  3. Step 3: Cross multiply
    865,937.32x = 1,194,990.50 × 483,964.10
  4. Step 4: Simplify right side
    865,937.32x = 578,332,501,841.05
  5. Step 5: Solve for x
    x = 578,332,501,841.05/865,937.32
  6. Step 6: Final answer
    x = 667,868.78

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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.