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Finding the Fourth Proportional to 393,062.10, 589,593.15 and 168,384.30

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Solution

The fourth proportional to 393,062.10, 589,593.15 and 168,384.30 is: 252,576.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,062.10 : 589,593.15 = 168,384.30 : x
  2. Step 2: Convert to fraction form
    393,062.10/589,593.15 = 168,384.30/x
  3. Step 3: Cross multiply
    393,062.10x = 589,593.15 × 168,384.30
  4. Step 4: Simplify right side
    393,062.10x = 99,278,229,847.55
  5. Step 5: Solve for x
    x = 99,278,229,847.55/393,062.10
  6. Step 6: Final answer
    x = 252,576.45

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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.