Home / 1,761,657.60-2,642,486.40-639,580.80

Finding the Fourth Proportional to 1,761,657.60, 2,642,486.40 and 639,580.80

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Solution

The fourth proportional to 1,761,657.60, 2,642,486.40 and 639,580.80 is: 959,371.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,657.60 : 2,642,486.40 = 639,580.80 : x
  2. Step 2: Convert to fraction form
    1,761,657.60/2,642,486.40 = 639,580.80/x
  3. Step 3: Cross multiply
    1,761,657.60x = 2,642,486.40 × 639,580.80
  4. Step 4: Simplify right side
    1,761,657.60x = 1,690,083,565,701.12
  5. Step 5: Solve for x
    x = 1,690,083,565,701.12/1,761,657.60
  6. Step 6: Final answer
    x = 959,371.20

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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.