Home / 638,589.20-881,259.24-352,119.44

Finding the Fourth Proportional to 638,589.20, 881,259.24 and 352,119.44

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Solution

The fourth proportional to 638,589.20, 881,259.24 and 352,119.44 is: 485,928.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,589.20 : 881,259.24 = 352,119.44 : x
  2. Step 2: Convert to fraction form
    638,589.20/881,259.24 = 352,119.44/x
  3. Step 3: Cross multiply
    638,589.20x = 881,259.24 × 352,119.44
  4. Step 4: Simplify right side
    638,589.20x = 310,308,510,083.63
  5. Step 5: Solve for x
    x = 310,308,510,083.63/638,589.20
  6. Step 6: Final answer
    x = 485,928.22

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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.