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Finding the Fourth Proportional to 472,832.01, 708,848.82 and 219,981.96

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Solution

The fourth proportional to 472,832.01, 708,848.82 and 219,981.96 is: 329,787.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,832.01 : 708,848.82 = 219,981.96 : x
  2. Step 2: Convert to fraction form
    472,832.01/708,848.82 = 219,981.96/x
  3. Step 3: Cross multiply
    472,832.01x = 708,848.82 × 219,981.96
  4. Step 4: Simplify right side
    472,832.01x = 155,933,952,767.29
  5. Step 5: Solve for x
    x = 155,933,952,767.29/472,832.01
  6. Step 6: Final answer
    x = 329,787.22

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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.