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Finding the Fourth Proportional to 1,154.16, 1,593.54 and 933.57

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Solution

The fourth proportional to 1,154.16, 1,593.54 and 933.57 is: 1,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154.16 : 1,593.54 = 933.57 : x
  2. Step 2: Convert to fraction form
    1,154.16/1,593.54 = 933.57/x
  3. Step 3: Cross multiply
    1,154.16x = 1,593.54 × 933.57
  4. Step 4: Simplify right side
    1,154.16x = 1,487,681.14
  5. Step 5: Solve for x
    x = 1,487,681.14/1,154.16
  6. Step 6: Final answer
    x = 1,288.97

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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.