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Finding the Fourth Proportional to 795.15, 1,194.21 and 472.50

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Solution

The fourth proportional to 795.15, 1,194.21 and 472.50 is: 709.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.15 : 1,194.21 = 472.50 : x
  2. Step 2: Convert to fraction form
    795.15/1,194.21 = 472.50/x
  3. Step 3: Cross multiply
    795.15x = 1,194.21 × 472.50
  4. Step 4: Simplify right side
    795.15x = 564,264.23
  5. Step 5: Solve for x
    x = 564,264.23/795.15
  6. Step 6: Final answer
    x = 709.63

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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.