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Finding the Fourth Proportional to 518,207.22, 777,753.90 and 202,885.56

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Solution

The fourth proportional to 518,207.22, 777,753.90 and 202,885.56 is: 304,501.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,207.22 : 777,753.90 = 202,885.56 : x
  2. Step 2: Convert to fraction form
    518,207.22/777,753.90 = 202,885.56/x
  3. Step 3: Cross multiply
    518,207.22x = 777,753.90 × 202,885.56
  4. Step 4: Simplify right side
    518,207.22x = 157,795,035,543.68
  5. Step 5: Solve for x
    x = 157,795,035,543.68/518,207.22
  6. Step 6: Final answer
    x = 304,501.81

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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.