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Finding the Fourth Proportional to 355,685.70, 532,936.16 and 250,283.20

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Solution

The fourth proportional to 355,685.70, 532,936.16 and 250,283.20 is: 375,007.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,685.70 : 532,936.16 = 250,283.20 : x
  2. Step 2: Convert to fraction form
    355,685.70/532,936.16 = 250,283.20/x
  3. Step 3: Cross multiply
    355,685.70x = 532,936.16 × 250,283.20
  4. Step 4: Simplify right side
    355,685.70x = 133,384,967,520.51
  5. Step 5: Solve for x
    x = 133,384,967,520.51/355,685.70
  6. Step 6: Final answer
    x = 375,007.96

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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.