Home / 566,343.24-781,559.19-311,700.30

Finding the Fourth Proportional to 566,343.24, 781,559.19 and 311,700.30

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Solution

The fourth proportional to 566,343.24, 781,559.19 and 311,700.30 is: 430,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,343.24 : 781,559.19 = 311,700.30 : x
  2. Step 2: Convert to fraction form
    566,343.24/781,559.19 = 311,700.30/x
  3. Step 3: Cross multiply
    566,343.24x = 781,559.19 × 311,700.30
  4. Step 4: Simplify right side
    566,343.24x = 243,612,233,990.76
  5. Step 5: Solve for x
    x = 243,612,233,990.76/566,343.24
  6. Step 6: Final answer
    x = 430,149.45

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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.