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Finding the Fourth Proportional to 381,171.01, 526,002.64 and 211,420.93

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Solution

The fourth proportional to 381,171.01, 526,002.64 and 211,420.93 is: 291,753.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,171.01 : 526,002.64 = 211,420.93 : x
  2. Step 2: Convert to fraction form
    381,171.01/526,002.64 = 211,420.93/x
  3. Step 3: Cross multiply
    381,171.01x = 526,002.64 × 211,420.93
  4. Step 4: Simplify right side
    381,171.01x = 111,207,967,331.26
  5. Step 5: Solve for x
    x = 111,207,967,331.26/381,171.01
  6. Step 6: Final answer
    x = 291,753.48

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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.