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Finding the Fourth Proportional to 532,553.92, 734,920.52 and 290,836.42

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Solution

The fourth proportional to 532,553.92, 734,920.52 and 290,836.42 is: 401,352.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,553.92 : 734,920.52 = 290,836.42 : x
  2. Step 2: Convert to fraction form
    532,553.92/734,920.52 = 290,836.42/x
  3. Step 3: Cross multiply
    532,553.92x = 734,920.52 × 290,836.42
  4. Step 4: Simplify right side
    532,553.92x = 213,741,653,021.34
  5. Step 5: Solve for x
    x = 213,741,653,021.34/532,553.92
  6. Step 6: Final answer
    x = 401,352.14

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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.