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Finding the Fourth Proportional to 1,192.93, 1,645.00 and 943.85

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Solution

The fourth proportional to 1,192.93, 1,645.00 and 943.85 is: 1,301.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.93 : 1,645.00 = 943.85 : x
  2. Step 2: Convert to fraction form
    1,192.93/1,645.00 = 943.85/x
  3. Step 3: Cross multiply
    1,192.93x = 1,645.00 × 943.85
  4. Step 4: Simplify right side
    1,192.93x = 1,552,628.53
  5. Step 5: Solve for x
    x = 1,552,628.53/1,192.93
  6. Step 6: Final answer
    x = 1,301.53

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1.5x scale

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.