Home / 382,355.10-527,648.31-212,579.10

Finding the Fourth Proportional to 382,355.10, 527,648.31 and 212,579.10

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Solution

The fourth proportional to 382,355.10, 527,648.31 and 212,579.10 is: 293,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,355.10 : 527,648.31 = 212,579.10 : x
  2. Step 2: Convert to fraction form
    382,355.10/527,648.31 = 212,579.10/x
  3. Step 3: Cross multiply
    382,355.10x = 527,648.31 × 212,579.10
  4. Step 4: Simplify right side
    382,355.10x = 112,167,002,856.32
  5. Step 5: Solve for x
    x = 112,167,002,856.32/382,355.10
  6. Step 6: Final answer
    x = 293,358.20

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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.