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Finding the Fourth Proportional to 1,364.84, 2,047.44 and 671.53

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Solution

The fourth proportional to 1,364.84, 2,047.44 and 671.53 is: 1,007.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.84 : 2,047.44 = 671.53 : x
  2. Step 2: Convert to fraction form
    1,364.84/2,047.44 = 671.53/x
  3. Step 3: Cross multiply
    1,364.84x = 2,047.44 × 671.53
  4. Step 4: Simplify right side
    1,364.84x = 1,374,917.38
  5. Step 5: Solve for x
    x = 1,374,917.38/1,364.84
  6. Step 6: Final answer
    x = 1,007.38

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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.