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Finding the Fourth Proportional to 491,375.84, 737,061.32 and 191,886.84

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Solution

The fourth proportional to 491,375.84, 737,061.32 and 191,886.84 is: 287,829.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,375.84 : 737,061.32 = 191,886.84 : x
  2. Step 2: Convert to fraction form
    491,375.84/737,061.32 = 191,886.84/x
  3. Step 3: Cross multiply
    491,375.84x = 737,061.32 × 191,886.84
  4. Step 4: Simplify right side
    491,375.84x = 141,432,368,060.75
  5. Step 5: Solve for x
    x = 141,432,368,060.75/491,375.84
  6. Step 6: Final answer
    x = 287,829.31

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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.