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Finding the Fourth Proportional to 554,879.20, 832,318.80 and 199,904.80

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Solution

The fourth proportional to 554,879.20, 832,318.80 and 199,904.80 is: 299,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,879.20 : 832,318.80 = 199,904.80 : x
  2. Step 2: Convert to fraction form
    554,879.20/832,318.80 = 199,904.80/x
  3. Step 3: Cross multiply
    554,879.20x = 832,318.80 × 199,904.80
  4. Step 4: Simplify right side
    554,879.20x = 166,384,523,250.24
  5. Step 5: Solve for x
    x = 166,384,523,250.24/554,879.20
  6. Step 6: Final answer
    x = 299,857.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.