Home / 1,261,161.60-1,740,388.68-688,211.52

Finding the Fourth Proportional to 1,261,161.60, 1,740,388.68 and 688,211.52

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Solution

The fourth proportional to 1,261,161.60, 1,740,388.68 and 688,211.52 is: 949,724.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,161.60 : 1,740,388.68 = 688,211.52 : x
  2. Step 2: Convert to fraction form
    1,261,161.60/1,740,388.68 = 688,211.52/x
  3. Step 3: Cross multiply
    1,261,161.60x = 1,740,388.68 × 688,211.52
  4. Step 4: Simplify right side
    1,261,161.60x = 1,197,755,538,853.59
  5. Step 5: Solve for x
    x = 1,197,755,538,853.59/1,261,161.60
  6. Step 6: Final answer
    x = 949,724.08

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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.