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Finding the Fourth Proportional to 737,728.80, 1,106,593.20 and 726,669.60

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Solution

The fourth proportional to 737,728.80, 1,106,593.20 and 726,669.60 is: 1,090,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,728.80 : 1,106,593.20 = 726,669.60 : x
  2. Step 2: Convert to fraction form
    737,728.80/1,106,593.20 = 726,669.60/x
  3. Step 3: Cross multiply
    737,728.80x = 1,106,593.20 × 726,669.60
  4. Step 4: Simplify right side
    737,728.80x = 804,127,638,006.72
  5. Step 5: Solve for x
    x = 804,127,638,006.72/737,728.80
  6. Step 6: Final answer
    x = 1,090,004.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.