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Finding the Fourth Proportional to 289,654.97, 399,648.80 and 174,842.87

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Solution

The fourth proportional to 289,654.97, 399,648.80 and 174,842.87 is: 241,237.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,654.97 : 399,648.80 = 174,842.87 : x
  2. Step 2: Convert to fraction form
    289,654.97/399,648.80 = 174,842.87/x
  3. Step 3: Cross multiply
    289,654.97x = 399,648.80 × 174,842.87
  4. Step 4: Simplify right side
    289,654.97x = 69,875,741,622.92
  5. Step 5: Solve for x
    x = 69,875,741,622.92/289,654.97
  6. Step 6: Final answer
    x = 241,237.85

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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.