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Finding the Fourth Proportional to 322,331.56, 483,331.21 and 144,686.30

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Solution

The fourth proportional to 322,331.56, 483,331.21 and 144,686.30 is: 216,954.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,331.56 : 483,331.21 = 144,686.30 : x
  2. Step 2: Convert to fraction form
    322,331.56/483,331.21 = 144,686.30/x
  3. Step 3: Cross multiply
    322,331.56x = 483,331.21 × 144,686.30
  4. Step 4: Simplify right side
    322,331.56x = 69,931,401,671.05
  5. Step 5: Solve for x
    x = 69,931,401,671.05/322,331.56
  6. Step 6: Final answer
    x = 216,954.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.