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Finding the Fourth Proportional to 544,087.80, 815,840.10 and 228,187.80

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Solution

The fourth proportional to 544,087.80, 815,840.10 and 228,187.80 is: 342,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,087.80 : 815,840.10 = 228,187.80 : x
  2. Step 2: Convert to fraction form
    544,087.80/815,840.10 = 228,187.80/x
  3. Step 3: Cross multiply
    544,087.80x = 815,840.10 × 228,187.80
  4. Step 4: Simplify right side
    544,087.80x = 186,164,757,570.78
  5. Step 5: Solve for x
    x = 186,164,757,570.78/544,087.80
  6. Step 6: Final answer
    x = 342,159.40

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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.