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Finding the Fourth Proportional to 737,905.20, 1,105,141.44 and 712,334.52

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Solution

The fourth proportional to 737,905.20, 1,105,141.44 and 712,334.52 is: 1,066,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,905.20 : 1,105,141.44 = 712,334.52 : x
  2. Step 2: Convert to fraction form
    737,905.20/1,105,141.44 = 712,334.52/x
  3. Step 3: Cross multiply
    737,905.20x = 1,105,141.44 × 712,334.52
  4. Step 4: Simplify right side
    737,905.20x = 787,230,397,194.51
  5. Step 5: Solve for x
    x = 787,230,397,194.51/737,905.20
  6. Step 6: Final answer
    x = 1,066,844.90

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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.