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Finding the Fourth Proportional to 389,252.52, 537,168.24 and 210,404.52

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Solution

The fourth proportional to 389,252.52, 537,168.24 and 210,404.52 is: 290,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,252.52 : 537,168.24 = 210,404.52 : x
  2. Step 2: Convert to fraction form
    389,252.52/537,168.24 = 210,404.52/x
  3. Step 3: Cross multiply
    389,252.52x = 537,168.24 × 210,404.52
  4. Step 4: Simplify right side
    389,252.52x = 113,022,625,696.45
  5. Step 5: Solve for x
    x = 113,022,625,696.45/389,252.52
  6. Step 6: Final answer
    x = 290,358.11

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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.