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Finding the Fourth Proportional to 382,363.56, 527,602.59 and 221,233.65

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Solution

The fourth proportional to 382,363.56, 527,602.59 and 221,233.65 is: 305,268.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,363.56 : 527,602.59 = 221,233.65 : x
  2. Step 2: Convert to fraction form
    382,363.56/527,602.59 = 221,233.65/x
  3. Step 3: Cross multiply
    382,363.56x = 527,602.59 × 221,233.65
  4. Step 4: Simplify right side
    382,363.56x = 116,723,446,735.15
  5. Step 5: Solve for x
    x = 116,723,446,735.15/382,363.56
  6. Step 6: Final answer
    x = 305,268.23

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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.