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Finding the Fourth Proportional to 864,469.80, 1,294,371.90 and 864,469.80

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Solution

The fourth proportional to 864,469.80, 1,294,371.90 and 864,469.80 is: 1,294,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,469.80 : 1,294,371.90 = 864,469.80 : x
  2. Step 2: Convert to fraction form
    864,469.80/1,294,371.90 = 864,469.80/x
  3. Step 3: Cross multiply
    864,469.80x = 1,294,371.90 × 864,469.80
  4. Step 4: Simplify right side
    864,469.80x = 1,118,945,417,518.62
  5. Step 5: Solve for x
    x = 1,118,945,417,518.62/864,469.80
  6. Step 6: Final answer
    x = 1,294,371.90

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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.