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Finding the Fourth Proportional to 361,914.54, 543,148.94 and 260,663.95

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Solution

The fourth proportional to 361,914.54, 543,148.94 and 260,663.95 is: 391,195.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,914.54 : 543,148.94 = 260,663.95 : x
  2. Step 2: Convert to fraction form
    361,914.54/543,148.94 = 260,663.95/x
  3. Step 3: Cross multiply
    361,914.54x = 543,148.94 × 260,663.95
  4. Step 4: Simplify right side
    361,914.54x = 141,579,348,138.71
  5. Step 5: Solve for x
    x = 141,579,348,138.71/361,914.54
  6. Step 6: Final answer
    x = 391,195.52

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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.