Home / 1,131,520.08-1,561,537.80-622,261.20

Finding the Fourth Proportional to 1,131,520.08, 1,561,537.80 and 622,261.20

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Solution

The fourth proportional to 1,131,520.08, 1,561,537.80 and 622,261.20 is: 858,742.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,520.08 : 1,561,537.80 = 622,261.20 : x
  2. Step 2: Convert to fraction form
    1,131,520.08/1,561,537.80 = 622,261.20/x
  3. Step 3: Cross multiply
    1,131,520.08x = 1,561,537.80 × 622,261.20
  4. Step 4: Simplify right side
    1,131,520.08x = 971,684,385,273.36
  5. Step 5: Solve for x
    x = 971,684,385,273.36/1,131,520.08
  6. Step 6: Final answer
    x = 858,742.50

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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.