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Finding the Fourth Proportional to 1,194.48, 1,648.41 and 670.52

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Solution

The fourth proportional to 1,194.48, 1,648.41 and 670.52 is: 925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.48 : 1,648.41 = 670.52 : x
  2. Step 2: Convert to fraction form
    1,194.48/1,648.41 = 670.52/x
  3. Step 3: Cross multiply
    1,194.48x = 1,648.41 × 670.52
  4. Step 4: Simplify right side
    1,194.48x = 1,105,291.87
  5. Step 5: Solve for x
    x = 1,105,291.87/1,194.48
  6. Step 6: Final answer
    x = 925.33

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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.