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Finding the Fourth Proportional to 535,869.88, 803,181.51 and 198,650.88

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Solution

The fourth proportional to 535,869.88, 803,181.51 and 198,650.88 is: 297,745.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,869.88 : 803,181.51 = 198,650.88 : x
  2. Step 2: Convert to fraction form
    535,869.88/803,181.51 = 198,650.88/x
  3. Step 3: Cross multiply
    535,869.88x = 803,181.51 × 198,650.88
  4. Step 4: Simplify right side
    535,869.88x = 159,552,713,761.23
  5. Step 5: Solve for x
    x = 159,552,713,761.23/535,869.88
  6. Step 6: Final answer
    x = 297,745.25

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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.