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Finding the Fourth Proportional to 515,197.99, 773,272.59 and 371,253.25

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Solution

The fourth proportional to 515,197.99, 773,272.59 and 371,253.25 is: 557,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,197.99 : 773,272.59 = 371,253.25 : x
  2. Step 2: Convert to fraction form
    515,197.99/773,272.59 = 371,253.25/x
  3. Step 3: Cross multiply
    515,197.99x = 773,272.59 × 371,253.25
  4. Step 4: Simplify right side
    515,197.99x = 287,079,962,173.42
  5. Step 5: Solve for x
    x = 287,079,962,173.42/515,197.99
  6. Step 6: Final answer
    x = 557,222.60

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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.