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Finding the Fourth Proportional to 495,228.67, 742,722.85 and 228,732.73

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Solution

The fourth proportional to 495,228.67, 742,722.85 and 228,732.73 is: 343,043.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,228.67 : 742,722.85 = 228,732.73 : x
  2. Step 2: Convert to fraction form
    495,228.67/742,722.85 = 228,732.73/x
  3. Step 3: Cross multiply
    495,228.67x = 742,722.85 × 228,732.73
  4. Step 4: Simplify right side
    495,228.67x = 169,885,023,542.99
  5. Step 5: Solve for x
    x = 169,885,023,542.99/495,228.67
  6. Step 6: Final answer
    x = 343,043.60

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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.