Home / 931,753.70-1,397,661.62-257,778.56

Finding the Fourth Proportional to 931,753.70, 1,397,661.62 and 257,778.56

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Solution

The fourth proportional to 931,753.70, 1,397,661.62 and 257,778.56 is: 386,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,753.70 : 1,397,661.62 = 257,778.56 : x
  2. Step 2: Convert to fraction form
    931,753.70/1,397,661.62 = 257,778.56/x
  3. Step 3: Cross multiply
    931,753.70x = 1,397,661.62 × 257,778.56
  4. Step 4: Simplify right side
    931,753.70x = 360,287,199,770.87
  5. Step 5: Solve for x
    x = 360,287,199,770.87/931,753.70
  6. Step 6: Final answer
    x = 386,676.44

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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.