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Finding the Fourth Proportional to 1,197.06, 1,796.19 and 619.93

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Solution

The fourth proportional to 1,197.06, 1,796.19 and 619.93 is: 930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.06 : 1,796.19 = 619.93 : x
  2. Step 2: Convert to fraction form
    1,197.06/1,796.19 = 619.93/x
  3. Step 3: Cross multiply
    1,197.06x = 1,796.19 × 619.93
  4. Step 4: Simplify right side
    1,197.06x = 1,113,512.07
  5. Step 5: Solve for x
    x = 1,113,512.07/1,197.06
  6. Step 6: Final answer
    x = 930.21

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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.