Home / 905,528.42-1,357,242.78-853,040.42

Finding the Fourth Proportional to 905,528.42, 1,357,242.78 and 853,040.42

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Solution

The fourth proportional to 905,528.42, 1,357,242.78 and 853,040.42 is: 1,278,571.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,528.42 : 1,357,242.78 = 853,040.42 : x
  2. Step 2: Convert to fraction form
    905,528.42/1,357,242.78 = 853,040.42/x
  3. Step 3: Cross multiply
    905,528.42x = 1,357,242.78 × 853,040.42
  4. Step 4: Simplify right side
    905,528.42x = 1,157,782,951,093.17
  5. Step 5: Solve for x
    x = 1,157,782,951,093.17/905,528.42
  6. Step 6: Final answer
    x = 1,278,571.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.