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Finding the Fourth Proportional to 697,187.88, 1,045,820.88 and 198,513

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Solution

The fourth proportional to 697,187.88, 1,045,820.88 and 198,513 is: 297,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,187.88 : 1,045,820.88 = 198,513 : x
  2. Step 2: Convert to fraction form
    697,187.88/1,045,820.88 = 198,513/x
  3. Step 3: Cross multiply
    697,187.88x = 1,045,820.88 × 198,513
  4. Step 4: Simplify right side
    697,187.88x = 207,609,040,351.44
  5. Step 5: Solve for x
    x = 207,609,040,351.44/697,187.88
  6. Step 6: Final answer
    x = 297,780.62

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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.