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Finding the Fourth Proportional to 293,226.80, 439,643.10 and 115,642.40

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Solution

The fourth proportional to 293,226.80, 439,643.10 and 115,642.40 is: 173,385.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,226.80 : 439,643.10 = 115,642.40 : x
  2. Step 2: Convert to fraction form
    293,226.80/439,643.10 = 115,642.40/x
  3. Step 3: Cross multiply
    293,226.80x = 439,643.10 × 115,642.40
  4. Step 4: Simplify right side
    293,226.80x = 50,841,383,227.44
  5. Step 5: Solve for x
    x = 50,841,383,227.44/293,226.80
  6. Step 6: Final answer
    x = 173,385.87

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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.