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Finding the Fourth Proportional to 1,193.52, 1,790.28 and 372.51

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Solution

The fourth proportional to 1,193.52, 1,790.28 and 372.51 is: 558.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.52 : 1,790.28 = 372.51 : x
  2. Step 2: Convert to fraction form
    1,193.52/1,790.28 = 372.51/x
  3. Step 3: Cross multiply
    1,193.52x = 1,790.28 × 372.51
  4. Step 4: Simplify right side
    1,193.52x = 666,897.20
  5. Step 5: Solve for x
    x = 666,897.20/1,193.52
  6. Step 6: Final answer
    x = 558.77

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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.