Home / 1,131,613.16-1,561,595-622,315.56

Finding the Fourth Proportional to 1,131,613.16, 1,561,595 and 622,315.56

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Solution

The fourth proportional to 1,131,613.16, 1,561,595 and 622,315.56 is: 858,778.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,613.16 : 1,561,595 = 622,315.56 : x
  2. Step 2: Convert to fraction form
    1,131,613.16/1,561,595 = 622,315.56/x
  3. Step 3: Cross multiply
    1,131,613.16x = 1,561,595 × 622,315.56
  4. Step 4: Simplify right side
    1,131,613.16x = 971,804,866,918.20
  5. Step 5: Solve for x
    x = 971,804,866,918.20/1,131,613.16
  6. Step 6: Final answer
    x = 858,778.34

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Double scale
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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.