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Finding the Fourth Proportional to 352,684.48, 486,853.44 and 238,118.32

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Solution

The fourth proportional to 352,684.48, 486,853.44 and 238,118.32 is: 328,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,684.48 : 486,853.44 = 238,118.32 : x
  2. Step 2: Convert to fraction form
    352,684.48/486,853.44 = 238,118.32/x
  3. Step 3: Cross multiply
    352,684.48x = 486,853.44 × 238,118.32
  4. Step 4: Simplify right side
    352,684.48x = 115,928,723,219.02
  5. Step 5: Solve for x
    x = 115,928,723,219.02/352,684.48
  6. Step 6: Final answer
    x = 328,703.78

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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.