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Finding the Fourth Proportional to 334,805.46, 501,781.11 and 156,920.55

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Solution

The fourth proportional to 334,805.46, 501,781.11 and 156,920.55 is: 235,180.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,805.46 : 501,781.11 = 156,920.55 : x
  2. Step 2: Convert to fraction form
    334,805.46/501,781.11 = 156,920.55/x
  3. Step 3: Cross multiply
    334,805.46x = 501,781.11 × 156,920.55
  4. Step 4: Simplify right side
    334,805.46x = 78,739,767,760.81
  5. Step 5: Solve for x
    x = 78,739,767,760.81/334,805.46
  6. Step 6: Final answer
    x = 235,180.66

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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.