Home / 783,141.10-1,174,711.66-659,138.20

Finding the Fourth Proportional to 783,141.10, 1,174,711.66 and 659,138.20

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Solution

The fourth proportional to 783,141.10, 1,174,711.66 and 659,138.20 is: 988,707.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,141.10 : 1,174,711.66 = 659,138.20 : x
  2. Step 2: Convert to fraction form
    783,141.10/1,174,711.66 = 659,138.20/x
  3. Step 3: Cross multiply
    783,141.10x = 1,174,711.66 × 659,138.20
  4. Step 4: Simplify right side
    783,141.10x = 774,297,329,091.41
  5. Step 5: Solve for x
    x = 774,297,329,091.41/783,141.10
  6. Step 6: Final answer
    x = 988,707.31

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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.