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Finding the Fourth Proportional to 352,692, 486,714.96 and 193,716

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Solution

The fourth proportional to 352,692, 486,714.96 and 193,716 is: 267,328.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,692 : 486,714.96 = 193,716 : x
  2. Step 2: Convert to fraction form
    352,692/486,714.96 = 193,716/x
  3. Step 3: Cross multiply
    352,692x = 486,714.96 × 193,716
  4. Step 4: Simplify right side
    352,692x = 94,284,475,191.36
  5. Step 5: Solve for x
    x = 94,284,475,191.36/352,692
  6. Step 6: Final answer
    x = 267,328.08

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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.