Home / 1,131,701.76-1,561,365.92-641,618.88

Finding the Fourth Proportional to 1,131,701.76, 1,561,365.92 and 641,618.88

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Solution

The fourth proportional to 1,131,701.76, 1,561,365.92 and 641,618.88 is: 885,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,701.76 : 1,561,365.92 = 641,618.88 : x
  2. Step 2: Convert to fraction form
    1,131,701.76/1,561,365.92 = 641,618.88/x
  3. Step 3: Cross multiply
    1,131,701.76x = 1,561,365.92 × 641,618.88
  4. Step 4: Simplify right side
    1,131,701.76x = 1,001,801,852,860.57
  5. Step 5: Solve for x
    x = 1,001,801,852,860.57/1,131,701.76
  6. Step 6: Final answer
    x = 885,217.19

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1.5x scale

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.