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Finding the Fourth Proportional to 384,767.01, 530,976.81 and 215,001.12

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Solution

The fourth proportional to 384,767.01, 530,976.81 and 215,001.12 is: 296,700.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,767.01 : 530,976.81 = 215,001.12 : x
  2. Step 2: Convert to fraction form
    384,767.01/530,976.81 = 215,001.12/x
  3. Step 3: Cross multiply
    384,767.01x = 530,976.81 × 215,001.12
  4. Step 4: Simplify right side
    384,767.01x = 114,160,608,844.03
  5. Step 5: Solve for x
    x = 114,160,608,844.03/384,767.01
  6. Step 6: Final answer
    x = 296,700.62

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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.