Home / 1,332,139.68-1,998,504.36-621,779.76

Finding the Fourth Proportional to 1,332,139.68, 1,998,504.36 and 621,779.76

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Solution

The fourth proportional to 1,332,139.68, 1,998,504.36 and 621,779.76 is: 932,807.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,139.68 : 1,998,504.36 = 621,779.76 : x
  2. Step 2: Convert to fraction form
    1,332,139.68/1,998,504.36 = 621,779.76/x
  3. Step 3: Cross multiply
    1,332,139.68x = 1,998,504.36 × 621,779.76
  4. Step 4: Simplify right side
    1,332,139.68x = 1,242,629,561,319.75
  5. Step 5: Solve for x
    x = 1,242,629,561,319.75/1,332,139.68
  6. Step 6: Final answer
    x = 932,807.26

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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.