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Finding the Fourth Proportional to 1,094.90, 1,641.73 and 364.42

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Solution

The fourth proportional to 1,094.90, 1,641.73 and 364.42 is: 546.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.90 : 1,641.73 = 364.42 : x
  2. Step 2: Convert to fraction form
    1,094.90/1,641.73 = 364.42/x
  3. Step 3: Cross multiply
    1,094.90x = 1,641.73 × 364.42
  4. Step 4: Simplify right side
    1,094.90x = 598,279.25
  5. Step 5: Solve for x
    x = 598,279.25/1,094.90
  6. Step 6: Final answer
    x = 546.42

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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.