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Finding the Fourth Proportional to 445,838.40, 668,749.86 and 179,592.11

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Solution

The fourth proportional to 445,838.40, 668,749.86 and 179,592.11 is: 269,385.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,838.40 : 668,749.86 = 179,592.11 : x
  2. Step 2: Convert to fraction form
    445,838.40/668,749.86 = 179,592.11/x
  3. Step 3: Cross multiply
    445,838.40x = 668,749.86 × 179,592.11
  4. Step 4: Simplify right side
    445,838.40x = 120,102,199,211.98
  5. Step 5: Solve for x
    x = 120,102,199,211.98/445,838.40
  6. Step 6: Final answer
    x = 269,385.05

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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.