Home / 991,101.66-1,367,829.63-555,560.82

Finding the Fourth Proportional to 991,101.66, 1,367,829.63 and 555,560.82

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Solution

The fourth proportional to 991,101.66, 1,367,829.63 and 555,560.82 is: 766,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,101.66 : 1,367,829.63 = 555,560.82 : x
  2. Step 2: Convert to fraction form
    991,101.66/1,367,829.63 = 555,560.82/x
  3. Step 3: Cross multiply
    991,101.66x = 1,367,829.63 × 555,560.82
  4. Step 4: Simplify right side
    991,101.66x = 759,912,550,863.10
  5. Step 5: Solve for x
    x = 759,912,550,863.10/991,101.66
  6. Step 6: Final answer
    x = 766,735.22

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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.