Home / 681,359.68-939,268.20-436,318.48

Finding the Fourth Proportional to 681,359.68, 939,268.20 and 436,318.48

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Solution

The fourth proportional to 681,359.68, 939,268.20 and 436,318.48 is: 601,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,359.68 : 939,268.20 = 436,318.48 : x
  2. Step 2: Convert to fraction form
    681,359.68/939,268.20 = 436,318.48/x
  3. Step 3: Cross multiply
    681,359.68x = 939,268.20 × 436,318.48
  4. Step 4: Simplify right side
    681,359.68x = 409,820,073,336.34
  5. Step 5: Solve for x
    x = 409,820,073,336.34/681,359.68
  6. Step 6: Final answer
    x = 601,473.91

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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.