Home / 516,441.28-712,755.80-290,086.72

Finding the Fourth Proportional to 516,441.28, 712,755.80 and 290,086.72

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Solution

The fourth proportional to 516,441.28, 712,755.80 and 290,086.72 is: 400,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,441.28 : 712,755.80 = 290,086.72 : x
  2. Step 2: Convert to fraction form
    516,441.28/712,755.80 = 290,086.72/x
  3. Step 3: Cross multiply
    516,441.28x = 712,755.80 × 290,086.72
  4. Step 4: Simplify right side
    516,441.28x = 206,760,992,182.98
  5. Step 5: Solve for x
    x = 206,760,992,182.98/516,441.28
  6. Step 6: Final answer
    x = 400,357.21

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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.