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Finding the Fourth Proportional to 556,222, 834,358.92 and 162,238

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Solution

The fourth proportional to 556,222, 834,358.92 and 162,238 is: 243,364.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,222 : 834,358.92 = 162,238 : x
  2. Step 2: Convert to fraction form
    556,222/834,358.92 = 162,238/x
  3. Step 3: Cross multiply
    556,222x = 834,358.92 × 162,238
  4. Step 4: Simplify right side
    556,222x = 135,364,722,462.96
  5. Step 5: Solve for x
    x = 135,364,722,462.96/556,222
  6. Step 6: Final answer
    x = 243,364.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.