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Finding the Fourth Proportional to 1,015.84, 1,522.55 and 706.02

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Solution

The fourth proportional to 1,015.84, 1,522.55 and 706.02 is: 1,058.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015.84 : 1,522.55 = 706.02 : x
  2. Step 2: Convert to fraction form
    1,015.84/1,522.55 = 706.02/x
  3. Step 3: Cross multiply
    1,015.84x = 1,522.55 × 706.02
  4. Step 4: Simplify right side
    1,015.84x = 1,074,942.84
  5. Step 5: Solve for x
    x = 1,074,942.84/1,015.84
  6. Step 6: Final answer
    x = 1,058.18

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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.