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Finding the Fourth Proportional to 382,017.66, 527,174.91 and 212,252.19

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Solution

The fourth proportional to 382,017.66, 527,174.91 and 212,252.19 is: 292,902.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,017.66 : 527,174.91 = 212,252.19 : x
  2. Step 2: Convert to fraction form
    382,017.66/527,174.91 = 212,252.19/x
  3. Step 3: Cross multiply
    382,017.66x = 527,174.91 × 212,252.19
  4. Step 4: Simplify right side
    382,017.66x = 111,894,029,160.55
  5. Step 5: Solve for x
    x = 111,894,029,160.55/382,017.66
  6. Step 6: Final answer
    x = 292,902.77

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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.