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Finding the Fourth Proportional to 1,297.55, 1,946.36 and 567.14

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Solution

The fourth proportional to 1,297.55, 1,946.36 and 567.14 is: 850.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297.55 : 1,946.36 = 567.14 : x
  2. Step 2: Convert to fraction form
    1,297.55/1,946.36 = 567.14/x
  3. Step 3: Cross multiply
    1,297.55x = 1,946.36 × 567.14
  4. Step 4: Simplify right side
    1,297.55x = 1,103,850.30
  5. Step 5: Solve for x
    x = 1,103,850.30/1,297.55
  6. Step 6: Final answer
    x = 850.72

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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.