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Finding the Fourth Proportional to 474,369.84, 711,788.56 and 221,667.77

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Solution

The fourth proportional to 474,369.84, 711,788.56 and 221,667.77 is: 332,610.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,369.84 : 711,788.56 = 221,667.77 : x
  2. Step 2: Convert to fraction form
    474,369.84/711,788.56 = 221,667.77/x
  3. Step 3: Cross multiply
    474,369.84x = 711,788.56 × 221,667.77
  4. Step 4: Simplify right side
    474,369.84x = 157,780,584,032.01
  5. Step 5: Solve for x
    x = 157,780,584,032.01/474,369.84
  6. Step 6: Final answer
    x = 332,610.91

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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.