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Finding the Fourth Proportional to 365,998.80, 548,998.20 and 240,432.60

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Solution

The fourth proportional to 365,998.80, 548,998.20 and 240,432.60 is: 360,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,998.80 : 548,998.20 = 240,432.60 : x
  2. Step 2: Convert to fraction form
    365,998.80/548,998.20 = 240,432.60/x
  3. Step 3: Cross multiply
    365,998.80x = 548,998.20 × 240,432.60
  4. Step 4: Simplify right side
    365,998.80x = 131,997,064,621.32
  5. Step 5: Solve for x
    x = 131,997,064,621.32/365,998.80
  6. Step 6: Final answer
    x = 360,648.90

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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.