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Finding the Fourth Proportional to 382,365.88, 527,654.06 and 212,596.92

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Solution

The fourth proportional to 382,365.88, 527,654.06 and 212,596.92 is: 293,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,365.88 : 527,654.06 = 212,596.92 : x
  2. Step 2: Convert to fraction form
    382,365.88/527,654.06 = 212,596.92/x
  3. Step 3: Cross multiply
    382,365.88x = 527,654.06 × 212,596.92
  4. Step 4: Simplify right side
    382,365.88x = 112,177,627,981.50
  5. Step 5: Solve for x
    x = 112,177,627,981.50/382,365.88
  6. Step 6: Final answer
    x = 293,377.71

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1.5x scale

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.