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Finding the Fourth Proportional to 365,426.60, 548,139.90 and 282,380.20

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Solution

The fourth proportional to 365,426.60, 548,139.90 and 282,380.20 is: 423,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,426.60 : 548,139.90 = 282,380.20 : x
  2. Step 2: Convert to fraction form
    365,426.60/548,139.90 = 282,380.20/x
  3. Step 3: Cross multiply
    365,426.60x = 548,139.90 × 282,380.20
  4. Step 4: Simplify right side
    365,426.60x = 154,783,854,589.98
  5. Step 5: Solve for x
    x = 154,783,854,589.98/365,426.60
  6. Step 6: Final answer
    x = 423,570.30

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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.