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Finding the Fourth Proportional to 3,115,605.80, 4,373,644.60 and 3,115,605.80

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Solution

The fourth proportional to 3,115,605.80, 4,373,644.60 and 3,115,605.80 is: 4,373,644.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115,605.80 : 4,373,644.60 = 3,115,605.80 : x
  2. Step 2: Convert to fraction form
    3,115,605.80/4,373,644.60 = 3,115,605.80/x
  3. Step 3: Cross multiply
    3,115,605.80x = 4,373,644.60 × 3,115,605.80
  4. Step 4: Simplify right side
    3,115,605.80x = 13,626,552,482,898.68
  5. Step 5: Solve for x
    x = 13,626,552,482,898.68/3,115,605.80
  6. Step 6: Final answer
    x = 4,373,644.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.