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Finding the Fourth Proportional to 381,452.48, 526,394.40 and 211,682.24

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Solution

The fourth proportional to 381,452.48, 526,394.40 and 211,682.24 is: 292,115.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,452.48 : 526,394.40 = 211,682.24 : x
  2. Step 2: Convert to fraction form
    381,452.48/526,394.40 = 211,682.24/x
  3. Step 3: Cross multiply
    381,452.48x = 526,394.40 × 211,682.24
  4. Step 4: Simplify right side
    381,452.48x = 111,428,345,715.46
  5. Step 5: Solve for x
    x = 111,428,345,715.46/381,452.48
  6. Step 6: Final answer
    x = 292,115.93

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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.