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Finding the Fourth Proportional to 552,706.20, 829,496.70 and 215,908.20

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Solution

The fourth proportional to 552,706.20, 829,496.70 and 215,908.20 is: 324,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,706.20 : 829,496.70 = 215,908.20 : x
  2. Step 2: Convert to fraction form
    552,706.20/829,496.70 = 215,908.20/x
  3. Step 3: Cross multiply
    552,706.20x = 829,496.70 × 215,908.20
  4. Step 4: Simplify right side
    552,706.20x = 179,095,139,402.94
  5. Step 5: Solve for x
    x = 179,095,139,402.94/552,706.20
  6. Step 6: Final answer
    x = 324,033.17

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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.