Home / 865,817.80-1,296,102.30-654,116.20

Finding the Fourth Proportional to 865,817.80, 1,296,102.30 and 654,116.20

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Solution

The fourth proportional to 865,817.80, 1,296,102.30 and 654,116.20 is: 979,191.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,817.80 : 1,296,102.30 = 654,116.20 : x
  2. Step 2: Convert to fraction form
    865,817.80/1,296,102.30 = 654,116.20/x
  3. Step 3: Cross multiply
    865,817.80x = 1,296,102.30 × 654,116.20
  4. Step 4: Simplify right side
    865,817.80x = 847,801,511,287.26
  5. Step 5: Solve for x
    x = 847,801,511,287.26/865,817.80
  6. Step 6: Final answer
    x = 979,191.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.