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Finding the Fourth Proportional to 489,316.84, 733,799.16 and 169,381.78

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Solution

The fourth proportional to 489,316.84, 733,799.16 and 169,381.78 is: 254,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,316.84 : 733,799.16 = 169,381.78 : x
  2. Step 2: Convert to fraction form
    489,316.84/733,799.16 = 169,381.78/x
  3. Step 3: Cross multiply
    489,316.84x = 733,799.16 × 169,381.78
  4. Step 4: Simplify right side
    489,316.84x = 124,292,207,883.31
  5. Step 5: Solve for x
    x = 124,292,207,883.31/489,316.84
  6. Step 6: Final answer
    x = 254,011.71

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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.