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Finding the Fourth Proportional to 478,044.72, 659,696.40 and 263,180.34

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Solution

The fourth proportional to 478,044.72, 659,696.40 and 263,180.34 is: 363,185.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,044.72 : 659,696.40 = 263,180.34 : x
  2. Step 2: Convert to fraction form
    478,044.72/659,696.40 = 263,180.34/x
  3. Step 3: Cross multiply
    478,044.72x = 659,696.40 × 263,180.34
  4. Step 4: Simplify right side
    478,044.72x = 173,619,122,848.78
  5. Step 5: Solve for x
    x = 173,619,122,848.78/478,044.72
  6. Step 6: Final answer
    x = 363,185.94

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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.