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Finding the Fourth Proportional to 1,568.16, 2,163.60 and 1,044

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Solution

The fourth proportional to 1,568.16, 2,163.60 and 1,044 is: 1,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,568.16 : 2,163.60 = 1,044 : x
  2. Step 2: Convert to fraction form
    1,568.16/2,163.60 = 1,044/x
  3. Step 3: Cross multiply
    1,568.16x = 2,163.60 × 1,044
  4. Step 4: Simplify right side
    1,568.16x = 2,258,798.40
  5. Step 5: Solve for x
    x = 2,258,798.40/1,568.16
  6. Step 6: Final answer
    x = 1,440.41

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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.