Home / 865,777.80-1,193,999.76-543,517.86

Finding the Fourth Proportional to 865,777.80, 1,193,999.76 and 543,517.86

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Solution

The fourth proportional to 865,777.80, 1,193,999.76 and 543,517.86 is: 749,568.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,777.80 : 1,193,999.76 = 543,517.86 : x
  2. Step 2: Convert to fraction form
    865,777.80/1,193,999.76 = 543,517.86/x
  3. Step 3: Cross multiply
    865,777.80x = 1,193,999.76 × 543,517.86
  4. Step 4: Simplify right side
    865,777.80x = 648,960,194,395.71
  5. Step 5: Solve for x
    x = 648,960,194,395.71/865,777.80
  6. Step 6: Final answer
    x = 749,568.99

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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.