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Finding the Fourth Proportional to 608,963.80, 853,949 and 608,963.80

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Solution

The fourth proportional to 608,963.80, 853,949 and 608,963.80 is: 853,949

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,963.80 : 853,949 = 608,963.80 : x
  2. Step 2: Convert to fraction form
    608,963.80/853,949 = 608,963.80/x
  3. Step 3: Cross multiply
    608,963.80x = 853,949 × 608,963.80
  4. Step 4: Simplify right side
    608,963.80x = 520,024,028,046.20
  5. Step 5: Solve for x
    x = 520,024,028,046.20/608,963.80
  6. Step 6: Final answer
    x = 853,949

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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.