Home / 753,561.72-1,039,913.49-431,278.11

Finding the Fourth Proportional to 753,561.72, 1,039,913.49 and 431,278.11

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Solution

The fourth proportional to 753,561.72, 1,039,913.49 and 431,278.11 is: 595,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,561.72 : 1,039,913.49 = 431,278.11 : x
  2. Step 2: Convert to fraction form
    753,561.72/1,039,913.49 = 431,278.11/x
  3. Step 3: Cross multiply
    753,561.72x = 1,039,913.49 × 431,278.11
  4. Step 4: Simplify right side
    753,561.72x = 448,491,924,530.70
  5. Step 5: Solve for x
    x = 448,491,924,530.70/753,561.72
  6. Step 6: Final answer
    x = 595,162.83

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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.