Home / 1,131,775.68-1,561,801.92-622,445.12

Finding the Fourth Proportional to 1,131,775.68, 1,561,801.92 and 622,445.12

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Solution

The fourth proportional to 1,131,775.68, 1,561,801.92 and 622,445.12 is: 858,947.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,775.68 : 1,561,801.92 = 622,445.12 : x
  2. Step 2: Convert to fraction form
    1,131,775.68/1,561,801.92 = 622,445.12/x
  3. Step 3: Cross multiply
    1,131,775.68x = 1,561,801.92 × 622,445.12
  4. Step 4: Simplify right side
    1,131,775.68x = 972,135,983,510.63
  5. Step 5: Solve for x
    x = 972,135,983,510.63/1,131,775.68
  6. Step 6: Final answer
    x = 858,947.58

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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.