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Finding the Fourth Proportional to 695,120.34, 959,280.66 and 393,314.34

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Solution

The fourth proportional to 695,120.34, 959,280.66 and 393,314.34 is: 542,782.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,120.34 : 959,280.66 = 393,314.34 : x
  2. Step 2: Convert to fraction form
    695,120.34/959,280.66 = 393,314.34/x
  3. Step 3: Cross multiply
    695,120.34x = 959,280.66 × 393,314.34
  4. Step 4: Simplify right side
    695,120.34x = 377,298,839,662.66
  5. Step 5: Solve for x
    x = 377,298,839,662.66/695,120.34
  6. Step 6: Final answer
    x = 542,782.04

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1.5x scale

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.