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Finding the Fourth Proportional to 1,327.37, 1,831.56 and 737.89

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Solution

The fourth proportional to 1,327.37, 1,831.56 and 737.89 is: 1,018.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.37 : 1,831.56 = 737.89 : x
  2. Step 2: Convert to fraction form
    1,327.37/1,831.56 = 737.89/x
  3. Step 3: Cross multiply
    1,327.37x = 1,831.56 × 737.89
  4. Step 4: Simplify right side
    1,327.37x = 1,351,486.12
  5. Step 5: Solve for x
    x = 1,351,486.12/1,327.37
  6. Step 6: Final answer
    x = 1,018.17

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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.