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Finding the Fourth Proportional to 489,730.11, 675,794.58 and 271,927.59

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Solution

The fourth proportional to 489,730.11, 675,794.58 and 271,927.59 is: 375,241.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,730.11 : 675,794.58 = 271,927.59 : x
  2. Step 2: Convert to fraction form
    489,730.11/675,794.58 = 271,927.59/x
  3. Step 3: Cross multiply
    489,730.11x = 675,794.58 × 271,927.59
  4. Step 4: Simplify right side
    489,730.11x = 183,767,191,474.46
  5. Step 5: Solve for x
    x = 183,767,191,474.46/489,730.11
  6. Step 6: Final answer
    x = 375,241.77

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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.