Home / 1,288,201.60-1,929,969.60-1,101,577.60

Finding the Fourth Proportional to 1,288,201.60, 1,929,969.60 and 1,101,577.60

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Solution

The fourth proportional to 1,288,201.60, 1,929,969.60 and 1,101,577.60 is: 1,650,371.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,201.60 : 1,929,969.60 = 1,101,577.60 : x
  2. Step 2: Convert to fraction form
    1,288,201.60/1,929,969.60 = 1,101,577.60/x
  3. Step 3: Cross multiply
    1,288,201.60x = 1,929,969.60 × 1,101,577.60
  4. Step 4: Simplify right side
    1,288,201.60x = 2,126,011,280,040.96
  5. Step 5: Solve for x
    x = 2,126,011,280,040.96/1,288,201.60
  6. Step 6: Final answer
    x = 1,650,371.56

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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.