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Finding the Fourth Proportional to 1,159.05, 1,598.26 and 922.53

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Solution

The fourth proportional to 1,159.05, 1,598.26 and 922.53 is: 1,272.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.05 : 1,598.26 = 922.53 : x
  2. Step 2: Convert to fraction form
    1,159.05/1,598.26 = 922.53/x
  3. Step 3: Cross multiply
    1,159.05x = 1,598.26 × 922.53
  4. Step 4: Simplify right side
    1,159.05x = 1,474,442.80
  5. Step 5: Solve for x
    x = 1,474,442.80/1,159.05
  6. Step 6: Final answer
    x = 1,272.11

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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.