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Finding the Fourth Proportional to 445,799.90, 668,721.72 and 179,524.45

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Solution

The fourth proportional to 445,799.90, 668,721.72 and 179,524.45 is: 269,295.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,799.90 : 668,721.72 = 179,524.45 : x
  2. Step 2: Convert to fraction form
    445,799.90/668,721.72 = 179,524.45/x
  3. Step 3: Cross multiply
    445,799.90x = 668,721.72 × 179,524.45
  4. Step 4: Simplify right side
    445,799.90x = 120,051,900,495.17
  5. Step 5: Solve for x
    x = 120,051,900,495.17/445,799.90
  6. Step 6: Final answer
    x = 269,295.48

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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.