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Finding the Fourth Proportional to 1,665, 2,297.70 and 1,044

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Solution

The fourth proportional to 1,665, 2,297.70 and 1,044 is: 1,440.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665 : 2,297.70 = 1,044 : x
  2. Step 2: Convert to fraction form
    1,665/2,297.70 = 1,044/x
  3. Step 3: Cross multiply
    1,665x = 2,297.70 × 1,044
  4. Step 4: Simplify right side
    1,665x = 2,398,798.80
  5. Step 5: Solve for x
    x = 2,398,798.80/1,665
  6. Step 6: Final answer
    x = 1,440.72

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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.