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Finding the Fourth Proportional to 1,294.44, 1,941.72 and 564

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Solution

The fourth proportional to 1,294.44, 1,941.72 and 564 is: 846.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.44 : 1,941.72 = 564 : x
  2. Step 2: Convert to fraction form
    1,294.44/1,941.72 = 564/x
  3. Step 3: Cross multiply
    1,294.44x = 1,941.72 × 564
  4. Step 4: Simplify right side
    1,294.44x = 1,095,130.08
  5. Step 5: Solve for x
    x = 1,095,130.08/1,294.44
  6. Step 6: Final answer
    x = 846.03

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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.