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Finding the Fourth Proportional to 363,022.80, 545,117.40 and 274,376.40

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Solution

The fourth proportional to 363,022.80, 545,117.40 and 274,376.40 is: 412,005.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,022.80 : 545,117.40 = 274,376.40 : x
  2. Step 2: Convert to fraction form
    363,022.80/545,117.40 = 274,376.40/x
  3. Step 3: Cross multiply
    363,022.80x = 545,117.40 × 274,376.40
  4. Step 4: Simplify right side
    363,022.80x = 149,567,349,789.36
  5. Step 5: Solve for x
    x = 149,567,349,789.36/363,022.80
  6. Step 6: Final answer
    x = 412,005.39

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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.