Home / 905,158.50-1,357,912.59-344,149.38

Finding the Fourth Proportional to 905,158.50, 1,357,912.59 and 344,149.38

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Solution

The fourth proportional to 905,158.50, 1,357,912.59 and 344,149.38 is: 516,290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,158.50 : 1,357,912.59 = 344,149.38 : x
  2. Step 2: Convert to fraction form
    905,158.50/1,357,912.59 = 344,149.38/x
  3. Step 3: Cross multiply
    905,158.50x = 1,357,912.59 × 344,149.38
  4. Step 4: Simplify right side
    905,158.50x = 467,324,775,942.69
  5. Step 5: Solve for x
    x = 467,324,775,942.69/905,158.50
  6. Step 6: Final answer
    x = 516,290.55

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1.5x scale

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.