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Finding the Fourth Proportional to 400,606.16, 552,836.62 and 219,329.60

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Solution

The fourth proportional to 400,606.16, 552,836.62 and 219,329.60 is: 302,674.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,606.16 : 552,836.62 = 219,329.60 : x
  2. Step 2: Convert to fraction form
    400,606.16/552,836.62 = 219,329.60/x
  3. Step 3: Cross multiply
    400,606.16x = 552,836.62 × 219,329.60
  4. Step 4: Simplify right side
    400,606.16x = 121,253,433,177.92
  5. Step 5: Solve for x
    x = 121,253,433,177.92/400,606.16
  6. Step 6: Final answer
    x = 302,674.91

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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.