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Finding the Fourth Proportional to 886,851.78, 1,223,856.83 and 504,878.57

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Solution

The fourth proportional to 886,851.78, 1,223,856.83 and 504,878.57 is: 696,733.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,851.78 : 1,223,856.83 = 504,878.57 : x
  2. Step 2: Convert to fraction form
    886,851.78/1,223,856.83 = 504,878.57/x
  3. Step 3: Cross multiply
    886,851.78x = 1,223,856.83 × 504,878.57
  4. Step 4: Simplify right side
    886,851.78x = 617,899,077,571.46
  5. Step 5: Solve for x
    x = 617,899,077,571.46/886,851.78
  6. Step 6: Final answer
    x = 696,733.20

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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.