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Finding the Fourth Proportional to 297,295.14, 446,010.80 and 128,843.72

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Solution

The fourth proportional to 297,295.14, 446,010.80 and 128,843.72 is: 193,295.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,295.14 : 446,010.80 = 128,843.72 : x
  2. Step 2: Convert to fraction form
    297,295.14/446,010.80 = 128,843.72/x
  3. Step 3: Cross multiply
    297,295.14x = 446,010.80 × 128,843.72
  4. Step 4: Simplify right side
    297,295.14x = 57,465,687,757.90
  5. Step 5: Solve for x
    x = 57,465,687,757.90/297,295.14
  6. Step 6: Final answer
    x = 193,295.08

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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.