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Finding the Fourth Proportional to 352,607.66, 486,478.38 and 225,356.66

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Solution

The fourth proportional to 352,607.66, 486,478.38 and 225,356.66 is: 310,915.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,607.66 : 486,478.38 = 225,356.66 : x
  2. Step 2: Convert to fraction form
    352,607.66/486,478.38 = 225,356.66/x
  3. Step 3: Cross multiply
    352,607.66x = 486,478.38 × 225,356.66
  4. Step 4: Simplify right side
    352,607.66x = 109,631,142,879.01
  5. Step 5: Solve for x
    x = 109,631,142,879.01/352,607.66
  6. Step 6: Final answer
    x = 310,915.38

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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.