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Finding the Fourth Proportional to 384,102.92, 530,062.04 and 212,020.92

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Solution

The fourth proportional to 384,102.92, 530,062.04 and 212,020.92 is: 292,588.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,102.92 : 530,062.04 = 212,020.92 : x
  2. Step 2: Convert to fraction form
    384,102.92/530,062.04 = 212,020.92/x
  3. Step 3: Cross multiply
    384,102.92x = 530,062.04 × 212,020.92
  4. Step 4: Simplify right side
    384,102.92x = 112,384,241,377.88
  5. Step 5: Solve for x
    x = 112,384,241,377.88/384,102.92
  6. Step 6: Final answer
    x = 292,588.88

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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.