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Finding the Fourth Proportional to 1,197.18, 1,792.53 and 885.33

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Solution

The fourth proportional to 1,197.18, 1,792.53 and 885.33 is: 1,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.18 : 1,792.53 = 885.33 : x
  2. Step 2: Convert to fraction form
    1,197.18/1,792.53 = 885.33/x
  3. Step 3: Cross multiply
    1,197.18x = 1,792.53 × 885.33
  4. Step 4: Simplify right side
    1,197.18x = 1,586,980.58
  5. Step 5: Solve for x
    x = 1,586,980.58/1,197.18
  6. Step 6: Final answer
    x = 1,325.60

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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.