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Finding the Fourth Proportional to 1,571.88, 2,358.12 and 706.28

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Solution

The fourth proportional to 1,571.88, 2,358.12 and 706.28 is: 1,059.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.88 : 2,358.12 = 706.28 : x
  2. Step 2: Convert to fraction form
    1,571.88/2,358.12 = 706.28/x
  3. Step 3: Cross multiply
    1,571.88x = 2,358.12 × 706.28
  4. Step 4: Simplify right side
    1,571.88x = 1,665,492.99
  5. Step 5: Solve for x
    x = 1,665,492.99/1,571.88
  6. Step 6: Final answer
    x = 1,059.55

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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.