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Finding the Fourth Proportional to 695,940.56, 960,352.50 and 409,405.28

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Solution

The fourth proportional to 695,940.56, 960,352.50 and 409,405.28 is: 564,952.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,940.56 : 960,352.50 = 409,405.28 : x
  2. Step 2: Convert to fraction form
    695,940.56/960,352.50 = 409,405.28/x
  3. Step 3: Cross multiply
    695,940.56x = 960,352.50 × 409,405.28
  4. Step 4: Simplify right side
    695,940.56x = 393,173,384,161.20
  5. Step 5: Solve for x
    x = 393,173,384,161.20/695,940.56
  6. Step 6: Final answer
    x = 564,952.54

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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.