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Finding the Fourth Proportional to 382,508.01, 527,801.13 and 212,742.18

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Solution

The fourth proportional to 382,508.01, 527,801.13 and 212,742.18 is: 293,550.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,508.01 : 527,801.13 = 212,742.18 : x
  2. Step 2: Convert to fraction form
    382,508.01/527,801.13 = 212,742.18/x
  3. Step 3: Cross multiply
    382,508.01x = 527,801.13 × 212,742.18
  4. Step 4: Simplify right side
    382,508.01x = 112,285,563,002.66
  5. Step 5: Solve for x
    x = 112,285,563,002.66/382,508.01
  6. Step 6: Final answer
    x = 293,550.88

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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.