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Finding the Fourth Proportional to 865,865.83, 1,194,947.90 and 483,923.11

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Solution

The fourth proportional to 865,865.83, 1,194,947.90 and 483,923.11 is: 667,843.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,865.83 : 1,194,947.90 = 483,923.11 : x
  2. Step 2: Convert to fraction form
    865,865.83/1,194,947.90 = 483,923.11/x
  3. Step 3: Cross multiply
    865,865.83x = 1,194,947.90 × 483,923.11
  4. Step 4: Simplify right side
    865,865.83x = 578,262,904,055.97
  5. Step 5: Solve for x
    x = 578,262,904,055.97/865,865.83
  6. Step 6: Final answer
    x = 667,843.54

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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.