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Finding the Fourth Proportional to 737,737.80, 1,106,606.70 and 726,678.60

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Solution

The fourth proportional to 737,737.80, 1,106,606.70 and 726,678.60 is: 1,090,017.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,737.80 : 1,106,606.70 = 726,678.60 : x
  2. Step 2: Convert to fraction form
    737,737.80/1,106,606.70 = 726,678.60/x
  3. Step 3: Cross multiply
    737,737.80x = 1,106,606.70 × 726,678.60
  4. Step 4: Simplify right side
    737,737.80x = 804,147,407,506.62
  5. Step 5: Solve for x
    x = 804,147,407,506.62/737,737.80
  6. Step 6: Final answer
    x = 1,090,017.90

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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.