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Finding the Fourth Proportional to 644,897.84, 967,330.20 and 171,587.20

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Solution

The fourth proportional to 644,897.84, 967,330.20 and 171,587.20 is: 257,376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,897.84 : 967,330.20 = 171,587.20 : x
  2. Step 2: Convert to fraction form
    644,897.84/967,330.20 = 171,587.20/x
  3. Step 3: Cross multiply
    644,897.84x = 967,330.20 × 171,587.20
  4. Step 4: Simplify right side
    644,897.84x = 165,981,480,493.44
  5. Step 5: Solve for x
    x = 165,981,480,493.44/644,897.84
  6. Step 6: Final answer
    x = 257,376.39

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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.