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Finding the Fourth Proportional to 695,080.84, 959,185.38 and 393,281.32

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Solution

The fourth proportional to 695,080.84, 959,185.38 and 393,281.32 is: 542,713.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,080.84 : 959,185.38 = 393,281.32 : x
  2. Step 2: Convert to fraction form
    695,080.84/959,185.38 = 393,281.32/x
  3. Step 3: Cross multiply
    695,080.84x = 959,185.38 × 393,281.32
  4. Step 4: Simplify right side
    695,080.84x = 377,229,692,371.10
  5. Step 5: Solve for x
    x = 377,229,692,371.10/695,080.84
  6. Step 6: Final answer
    x = 542,713.41

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Double scale
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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.