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Finding the Fourth Proportional to 535,891.41, 803,911.03 and 198,903.41

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Solution

The fourth proportional to 535,891.41, 803,911.03 and 198,903.41 is: 298,382.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,891.41 : 803,911.03 = 198,903.41 : x
  2. Step 2: Convert to fraction form
    535,891.41/803,911.03 = 198,903.41/x
  3. Step 3: Cross multiply
    535,891.41x = 803,911.03 × 198,903.41
  4. Step 4: Simplify right side
    535,891.41x = 159,900,645,203.61
  5. Step 5: Solve for x
    x = 159,900,645,203.61/535,891.41
  6. Step 6: Final answer
    x = 298,382.55

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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.