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Finding the Fourth Proportional to 474,369.09, 711,787.43 and 221,667.02

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Solution

The fourth proportional to 474,369.09, 711,787.43 and 221,667.02 is: 332,609.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,369.09 : 711,787.43 = 221,667.02 : x
  2. Step 2: Convert to fraction form
    474,369.09/711,787.43 = 221,667.02/x
  3. Step 3: Cross multiply
    474,369.09x = 711,787.43 × 221,667.02
  4. Step 4: Simplify right side
    474,369.09x = 157,779,793,814.29
  5. Step 5: Solve for x
    x = 157,779,793,814.29/474,369.09
  6. Step 6: Final answer
    x = 332,609.77

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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.