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Finding the Fourth Proportional to 933.14, 1,400.54 and 929.63

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Solution

The fourth proportional to 933.14, 1,400.54 and 929.63 is: 1,395.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.14 : 1,400.54 = 929.63 : x
  2. Step 2: Convert to fraction form
    933.14/1,400.54 = 929.63/x
  3. Step 3: Cross multiply
    933.14x = 1,400.54 × 929.63
  4. Step 4: Simplify right side
    933.14x = 1,301,982.85
  5. Step 5: Solve for x
    x = 1,301,982.85/933.14
  6. Step 6: Final answer
    x = 1,395.27

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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.