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Finding the Fourth Proportional to 293,479.20, 440,251.20 and 93,765.60

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Solution

The fourth proportional to 293,479.20, 440,251.20 and 93,765.60 is: 140,658.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,479.20 : 440,251.20 = 93,765.60 : x
  2. Step 2: Convert to fraction form
    293,479.20/440,251.20 = 93,765.60/x
  3. Step 3: Cross multiply
    293,479.20x = 440,251.20 × 93,765.60
  4. Step 4: Simplify right side
    293,479.20x = 41,280,417,918.72
  5. Step 5: Solve for x
    x = 41,280,417,918.72/293,479.20
  6. Step 6: Final answer
    x = 140,658.75

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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.