Home / 861,356.17-1,188,661.85-474,163.31

Finding the Fourth Proportional to 861,356.17, 1,188,661.85 and 474,163.31

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Solution

The fourth proportional to 861,356.17, 1,188,661.85 and 474,163.31 is: 654,340.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,356.17 : 1,188,661.85 = 474,163.31 : x
  2. Step 2: Convert to fraction form
    861,356.17/1,188,661.85 = 474,163.31/x
  3. Step 3: Cross multiply
    861,356.17x = 1,188,661.85 × 474,163.31
  4. Step 4: Simplify right side
    861,356.17x = 563,619,837,867.56
  5. Step 5: Solve for x
    x = 563,619,837,867.56/861,356.17
  6. Step 6: Final answer
    x = 654,340.05

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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.