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Finding the Fourth Proportional to 297,057.56, 445,554.75 and 83,820.20

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Solution

The fourth proportional to 297,057.56, 445,554.75 and 83,820.20 is: 125,721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,057.56 : 445,554.75 = 83,820.20 : x
  2. Step 2: Convert to fraction form
    297,057.56/445,554.75 = 83,820.20/x
  3. Step 3: Cross multiply
    297,057.56x = 445,554.75 × 83,820.20
  4. Step 4: Simplify right side
    297,057.56x = 37,346,488,255.95
  5. Step 5: Solve for x
    x = 37,346,488,255.95/297,057.56
  6. Step 6: Final answer
    x = 125,721.39

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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.