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Finding the Fourth Proportional to 695,791.10, 960,175.48 and 409,329.64

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Solution

The fourth proportional to 695,791.10, 960,175.48 and 409,329.64 is: 564,865.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,791.10 : 960,175.48 = 409,329.64 : x
  2. Step 2: Convert to fraction form
    695,791.10/960,175.48 = 409,329.64/x
  3. Step 3: Cross multiply
    695,791.10x = 960,175.48 × 409,329.64
  4. Step 4: Simplify right side
    695,791.10x = 393,028,283,565.23
  5. Step 5: Solve for x
    x = 393,028,283,565.23/695,791.10
  6. Step 6: Final answer
    x = 564,865.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.