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Finding the Fourth Proportional to 352,605.66, 486,475.62 and 225,354.66

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Solution

The fourth proportional to 352,605.66, 486,475.62 and 225,354.66 is: 310,912.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,605.66 : 486,475.62 = 225,354.66 : x
  2. Step 2: Convert to fraction form
    352,605.66/486,475.62 = 225,354.66/x
  3. Step 3: Cross multiply
    352,605.66x = 486,475.62 × 225,354.66
  4. Step 4: Simplify right side
    352,605.66x = 109,629,547,943.39
  5. Step 5: Solve for x
    x = 109,629,547,943.39/352,605.66
  6. Step 6: Final answer
    x = 310,912.62

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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.