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Finding the Fourth Proportional to 573,212.88, 859,897.08 and 199,187.28

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Solution

The fourth proportional to 573,212.88, 859,897.08 and 199,187.28 is: 298,807.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,212.88 : 859,897.08 = 199,187.28 : x
  2. Step 2: Convert to fraction form
    573,212.88/859,897.08 = 199,187.28/x
  3. Step 3: Cross multiply
    573,212.88x = 859,897.08 × 199,187.28
  4. Step 4: Simplify right side
    573,212.88x = 171,280,560,445.14
  5. Step 5: Solve for x
    x = 171,280,560,445.14/573,212.88
  6. Step 6: Final answer
    x = 298,807.94

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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.