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Finding the Fourth Proportional to 554,906.20, 832,359.30 and 199,931.80

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Solution

The fourth proportional to 554,906.20, 832,359.30 and 199,931.80 is: 299,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,906.20 : 832,359.30 = 199,931.80 : x
  2. Step 2: Convert to fraction form
    554,906.20/832,359.30 = 199,931.80/x
  3. Step 3: Cross multiply
    554,906.20x = 832,359.30 × 199,931.80
  4. Step 4: Simplify right side
    554,906.20x = 166,415,093,095.74
  5. Step 5: Solve for x
    x = 166,415,093,095.74/554,906.20
  6. Step 6: Final answer
    x = 299,897.70

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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.