Home / 866,883.78-1,196,412.93-484,989.30

Finding the Fourth Proportional to 866,883.78, 1,196,412.93 and 484,989.30

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Solution

The fourth proportional to 866,883.78, 1,196,412.93 and 484,989.30 is: 669,348.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,883.78 : 1,196,412.93 = 484,989.30 : x
  2. Step 2: Convert to fraction form
    866,883.78/1,196,412.93 = 484,989.30/x
  3. Step 3: Cross multiply
    866,883.78x = 1,196,412.93 × 484,989.30
  4. Step 4: Simplify right side
    866,883.78x = 580,247,469,431.65
  5. Step 5: Solve for x
    x = 580,247,469,431.65/866,883.78
  6. Step 6: Final answer
    x = 669,348.63

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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.