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Finding the Fourth Proportional to 451,793.26, 677,688.81 and 249,379.66

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Solution

The fourth proportional to 451,793.26, 677,688.81 and 249,379.66 is: 374,068.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,793.26 : 677,688.81 = 249,379.66 : x
  2. Step 2: Convert to fraction form
    451,793.26/677,688.81 = 249,379.66/x
  3. Step 3: Cross multiply
    451,793.26x = 677,688.81 × 249,379.66
  4. Step 4: Simplify right side
    451,793.26x = 169,001,805,023.61
  5. Step 5: Solve for x
    x = 169,001,805,023.61/451,793.26
  6. Step 6: Final answer
    x = 374,068.89

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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.