Home / 1,131,685.02-1,561,758.03-622,420.20

Finding the Fourth Proportional to 1,131,685.02, 1,561,758.03 and 622,420.20

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Solution

The fourth proportional to 1,131,685.02, 1,561,758.03 and 622,420.20 is: 858,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,685.02 : 1,561,758.03 = 622,420.20 : x
  2. Step 2: Convert to fraction form
    1,131,685.02/1,561,758.03 = 622,420.20/x
  3. Step 3: Cross multiply
    1,131,685.02x = 1,561,758.03 × 622,420.20
  4. Step 4: Simplify right side
    1,131,685.02x = 972,069,745,384.21
  5. Step 5: Solve for x
    x = 972,069,745,384.21/1,131,685.02
  6. Step 6: Final answer
    x = 858,957.86

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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.