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Finding the Fourth Proportional to 382,306.70, 527,616.83 and 210,254.96

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Solution

The fourth proportional to 382,306.70, 527,616.83 and 210,254.96 is: 290,170.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,306.70 : 527,616.83 = 210,254.96 : x
  2. Step 2: Convert to fraction form
    382,306.70/527,616.83 = 210,254.96/x
  3. Step 3: Cross multiply
    382,306.70x = 527,616.83 × 210,254.96
  4. Step 4: Simplify right side
    382,306.70x = 110,934,055,486.98
  5. Step 5: Solve for x
    x = 110,934,055,486.98/382,306.70
  6. Step 6: Final answer
    x = 290,170.31

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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.