Home / 865,767.80-1,193,985.96-543,507.86

Finding the Fourth Proportional to 865,767.80, 1,193,985.96 and 543,507.86

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Solution

The fourth proportional to 865,767.80, 1,193,985.96 and 543,507.86 is: 749,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,767.80 : 1,193,985.96 = 543,507.86 : x
  2. Step 2: Convert to fraction form
    865,767.80/1,193,985.96 = 543,507.86/x
  3. Step 3: Cross multiply
    865,767.80x = 1,193,985.96 × 543,507.86
  4. Step 4: Simplify right side
    865,767.80x = 648,940,753,989.65
  5. Step 5: Solve for x
    x = 648,940,753,989.65/865,767.80
  6. Step 6: Final answer
    x = 749,555.20

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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.