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Finding the Fourth Proportional to 381,187.62, 526,065.57 and 217,868.16

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Solution

The fourth proportional to 381,187.62, 526,065.57 and 217,868.16 is: 300,673.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,187.62 : 526,065.57 = 217,868.16 : x
  2. Step 2: Convert to fraction form
    381,187.62/526,065.57 = 217,868.16/x
  3. Step 3: Cross multiply
    381,187.62x = 526,065.57 × 217,868.16
  4. Step 4: Simplify right side
    381,187.62x = 114,612,937,775.25
  5. Step 5: Solve for x
    x = 114,612,937,775.25/381,187.62
  6. Step 6: Final answer
    x = 300,673.30

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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.