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Finding the Fourth Proportional to 348,034.20, 522,108.90 and 148,450.20

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Solution

The fourth proportional to 348,034.20, 522,108.90 and 148,450.20 is: 222,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,034.20 : 522,108.90 = 148,450.20 : x
  2. Step 2: Convert to fraction form
    348,034.20/522,108.90 = 148,450.20/x
  3. Step 3: Cross multiply
    348,034.20x = 522,108.90 × 148,450.20
  4. Step 4: Simplify right side
    348,034.20x = 77,507,170,626.78
  5. Step 5: Solve for x
    x = 77,507,170,626.78/348,034.20
  6. Step 6: Final answer
    x = 222,699.87

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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.