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Finding the Fourth Proportional to 322,516.20, 483,543.90 and 144,877.80

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Solution

The fourth proportional to 322,516.20, 483,543.90 and 144,877.80 is: 217,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,516.20 : 483,543.90 = 144,877.80 : x
  2. Step 2: Convert to fraction form
    322,516.20/483,543.90 = 144,877.80/x
  3. Step 3: Cross multiply
    322,516.20x = 483,543.90 × 144,877.80
  4. Step 4: Simplify right side
    322,516.20x = 70,054,776,435.42
  5. Step 5: Solve for x
    x = 70,054,776,435.42/322,516.20
  6. Step 6: Final answer
    x = 217,213.20

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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.