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Finding the Fourth Proportional to 293,253.20, 439,879.80 and 267,009.20

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Solution

The fourth proportional to 293,253.20, 439,879.80 and 267,009.20 is: 400,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,253.20 : 439,879.80 = 267,009.20 : x
  2. Step 2: Convert to fraction form
    293,253.20/439,879.80 = 267,009.20/x
  3. Step 3: Cross multiply
    293,253.20x = 439,879.80 × 267,009.20
  4. Step 4: Simplify right side
    293,253.20x = 117,451,953,494.16
  5. Step 5: Solve for x
    x = 117,451,953,494.16/293,253.20
  6. Step 6: Final answer
    x = 400,513.80

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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.