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Finding the Fourth Proportional to 886,969.80, 1,224,019.48 and 504,996.48

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Solution

The fourth proportional to 886,969.80, 1,224,019.48 and 504,996.48 is: 696,895.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,969.80 : 1,224,019.48 = 504,996.48 : x
  2. Step 2: Convert to fraction form
    886,969.80/1,224,019.48 = 504,996.48/x
  3. Step 3: Cross multiply
    886,969.80x = 1,224,019.48 × 504,996.48
  4. Step 4: Simplify right side
    886,969.80x = 618,125,528,851.43
  5. Step 5: Solve for x
    x = 618,125,528,851.43/886,969.80
  6. Step 6: Final answer
    x = 696,895.80

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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.