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Finding the Fourth Proportional to 1,193.68, 1,790.58 and 372.07

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Solution

The fourth proportional to 1,193.68, 1,790.58 and 372.07 is: 558.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.68 : 1,790.58 = 372.07 : x
  2. Step 2: Convert to fraction form
    1,193.68/1,790.58 = 372.07/x
  3. Step 3: Cross multiply
    1,193.68x = 1,790.58 × 372.07
  4. Step 4: Simplify right side
    1,193.68x = 666,212.15
  5. Step 5: Solve for x
    x = 666,212.15/1,193.68
  6. Step 6: Final answer
    x = 558.12

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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.