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Finding the Fourth Proportional to 1,193.01, 1,648.49 and 933

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Solution

The fourth proportional to 1,193.01, 1,648.49 and 933 is: 1,289.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.01 : 1,648.49 = 933 : x
  2. Step 2: Convert to fraction form
    1,193.01/1,648.49 = 933/x
  3. Step 3: Cross multiply
    1,193.01x = 1,648.49 × 933
  4. Step 4: Simplify right side
    1,193.01x = 1,538,041.17
  5. Step 5: Solve for x
    x = 1,538,041.17/1,193.01
  6. Step 6: Final answer
    x = 1,289.21

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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.