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Finding the Fourth Proportional to 308,000.40, 461,770.20 and 167,917.20

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Solution

The fourth proportional to 308,000.40, 461,770.20 and 167,917.20 is: 251,750.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,000.40 : 461,770.20 = 167,917.20 : x
  2. Step 2: Convert to fraction form
    308,000.40/461,770.20 = 167,917.20/x
  3. Step 3: Cross multiply
    308,000.40x = 461,770.20 × 167,917.20
  4. Step 4: Simplify right side
    308,000.40x = 77,539,159,027.44
  5. Step 5: Solve for x
    x = 77,539,159,027.44/308,000.40
  6. Step 6: Final answer
    x = 251,750.19

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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.