Home / 823,012.41-1,136,145.39-619,140.96

Finding the Fourth Proportional to 823,012.41, 1,136,145.39 and 619,140.96

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Solution

The fourth proportional to 823,012.41, 1,136,145.39 and 619,140.96 is: 854,706.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,012.41 : 1,136,145.39 = 619,140.96 : x
  2. Step 2: Convert to fraction form
    823,012.41/1,136,145.39 = 619,140.96/x
  3. Step 3: Cross multiply
    823,012.41x = 1,136,145.39 × 619,140.96
  4. Step 4: Simplify right side
    823,012.41x = 703,434,147,464.17
  5. Step 5: Solve for x
    x = 703,434,147,464.17/823,012.41
  6. Step 6: Final answer
    x = 854,706.61

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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.