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Finding the Fourth Proportional to 438,049.75, 604,508.66 and 236,845.75

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Solution

The fourth proportional to 438,049.75, 604,508.66 and 236,845.75 is: 326,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,049.75 : 604,508.66 = 236,845.75 : x
  2. Step 2: Convert to fraction form
    438,049.75/604,508.66 = 236,845.75/x
  3. Step 3: Cross multiply
    438,049.75x = 604,508.66 × 236,845.75
  4. Step 4: Simplify right side
    438,049.75x = 143,175,306,959.20
  5. Step 5: Solve for x
    x = 143,175,306,959.20/438,049.75
  6. Step 6: Final answer
    x = 326,847.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.