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Finding the Fourth Proportional to 368,644.29, 552,080.70 and 210,392.97

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Solution

The fourth proportional to 368,644.29, 552,080.70 and 210,392.97 is: 315,083.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,644.29 : 552,080.70 = 210,392.97 : x
  2. Step 2: Convert to fraction form
    368,644.29/552,080.70 = 210,392.97/x
  3. Step 3: Cross multiply
    368,644.29x = 552,080.70 × 210,392.97
  4. Step 4: Simplify right side
    368,644.29x = 116,153,898,152.68
  5. Step 5: Solve for x
    x = 116,153,898,152.68/368,644.29
  6. Step 6: Final answer
    x = 315,083.95

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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.