Home / 931,099.39-1,396,621.41-257,221.24

Finding the Fourth Proportional to 931,099.39, 1,396,621.41 and 257,221.24

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Solution

The fourth proportional to 931,099.39, 1,396,621.41 and 257,221.24 is: 385,824.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,099.39 : 1,396,621.41 = 257,221.24 : x
  2. Step 2: Convert to fraction form
    931,099.39/1,396,621.41 = 257,221.24/x
  3. Step 3: Cross multiply
    931,099.39x = 1,396,621.41 × 257,221.24
  4. Step 4: Simplify right side
    931,099.39x = 359,240,690,890.75
  5. Step 5: Solve for x
    x = 359,240,690,890.75/931,099.39
  6. Step 6: Final answer
    x = 385,824.21

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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.