Home / 400,313.10-596,439.87-394,539.42

Finding the Fourth Proportional to 400,313.10, 596,439.87 and 394,539.42

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Solution

The fourth proportional to 400,313.10, 596,439.87 and 394,539.42 is: 587,837.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,313.10 : 596,439.87 = 394,539.42 : x
  2. Step 2: Convert to fraction form
    400,313.10/596,439.87 = 394,539.42/x
  3. Step 3: Cross multiply
    400,313.10x = 596,439.87 × 394,539.42
  4. Step 4: Simplify right side
    400,313.10x = 235,319,040,374.68
  5. Step 5: Solve for x
    x = 235,319,040,374.68/400,313.10
  6. Step 6: Final answer
    x = 587,837.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.