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Finding the Fourth Proportional to 315,311.40, 472,967.10 and 244,452.60

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Solution

The fourth proportional to 315,311.40, 472,967.10 and 244,452.60 is: 366,678.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,311.40 : 472,967.10 = 244,452.60 : x
  2. Step 2: Convert to fraction form
    315,311.40/472,967.10 = 244,452.60/x
  3. Step 3: Cross multiply
    315,311.40x = 472,967.10 × 244,452.60
  4. Step 4: Simplify right side
    315,311.40x = 115,618,037,309.46
  5. Step 5: Solve for x
    x = 115,618,037,309.46/315,311.40
  6. Step 6: Final answer
    x = 366,678.90

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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.