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Finding the Fourth Proportional to 326,084.70, 488,543.85 and 201,279.90

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Solution

The fourth proportional to 326,084.70, 488,543.85 and 201,279.90 is: 301,559.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,084.70 : 488,543.85 = 201,279.90 : x
  2. Step 2: Convert to fraction form
    326,084.70/488,543.85 = 201,279.90/x
  3. Step 3: Cross multiply
    326,084.70x = 488,543.85 × 201,279.90
  4. Step 4: Simplify right side
    326,084.70x = 98,334,057,273.62
  5. Step 5: Solve for x
    x = 98,334,057,273.62/326,084.70
  6. Step 6: Final answer
    x = 301,559.86

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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.