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Finding the Fourth Proportional to 484,436.52, 668,522.40 and 272,468.52

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Solution

The fourth proportional to 484,436.52, 668,522.40 and 272,468.52 is: 376,006.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,436.52 : 668,522.40 = 272,468.52 : x
  2. Step 2: Convert to fraction form
    484,436.52/668,522.40 = 272,468.52/x
  3. Step 3: Cross multiply
    484,436.52x = 668,522.40 × 272,468.52
  4. Step 4: Simplify right side
    484,436.52x = 182,151,308,914.85
  5. Step 5: Solve for x
    x = 182,151,308,914.85/484,436.52
  6. Step 6: Final answer
    x = 376,006.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.