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Finding the Fourth Proportional to 381,817.17, 526,893.21 and 212,062.23

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Solution

The fourth proportional to 381,817.17, 526,893.21 and 212,062.23 is: 292,637.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,817.17 : 526,893.21 = 212,062.23 : x
  2. Step 2: Convert to fraction form
    381,817.17/526,893.21 = 212,062.23/x
  3. Step 3: Cross multiply
    381,817.17x = 526,893.21 × 212,062.23
  4. Step 4: Simplify right side
    381,817.17x = 111,734,149,084.46
  5. Step 5: Solve for x
    x = 111,734,149,084.46/381,817.17
  6. Step 6: Final answer
    x = 292,637.83

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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.