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Finding the Fourth Proportional to 389,093.71, 536,957.54 and 219,327.79

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Solution

The fourth proportional to 389,093.71, 536,957.54 and 219,327.79 is: 302,676.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,093.71 : 536,957.54 = 219,327.79 : x
  2. Step 2: Convert to fraction form
    389,093.71/536,957.54 = 219,327.79/x
  3. Step 3: Cross multiply
    389,093.71x = 536,957.54 × 219,327.79
  4. Step 4: Simplify right side
    389,093.71x = 117,769,710,572.04
  5. Step 5: Solve for x
    x = 117,769,710,572.04/389,093.71
  6. Step 6: Final answer
    x = 302,676.98

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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.