Home / 1,761,753.60-2,642,630.40-639,676.80

Finding the Fourth Proportional to 1,761,753.60, 2,642,630.40 and 639,676.80

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Solution

The fourth proportional to 1,761,753.60, 2,642,630.40 and 639,676.80 is: 959,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,753.60 : 2,642,630.40 = 639,676.80 : x
  2. Step 2: Convert to fraction form
    1,761,753.60/2,642,630.40 = 639,676.80/x
  3. Step 3: Cross multiply
    1,761,753.60x = 2,642,630.40 × 639,676.80
  4. Step 4: Simplify right side
    1,761,753.60x = 1,690,429,357,854.72
  5. Step 5: Solve for x
    x = 1,690,429,357,854.72/1,761,753.60
  6. Step 6: Final answer
    x = 959,515.20

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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.