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Finding the Fourth Proportional to 691,090.67, 954,191.41 and 484,797.65

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Solution

The fourth proportional to 691,090.67, 954,191.41 and 484,797.65 is: 669,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,090.67 : 954,191.41 = 484,797.65 : x
  2. Step 2: Convert to fraction form
    691,090.67/954,191.41 = 484,797.65/x
  3. Step 3: Cross multiply
    691,090.67x = 954,191.41 × 484,797.65
  4. Step 4: Simplify right side
    691,090.67x = 462,589,747,235.24
  5. Step 5: Solve for x
    x = 462,589,747,235.24/691,090.67
  6. Step 6: Final answer
    x = 669,361.87

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.