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Finding the Fourth Proportional to 702,202.80, 1,053,304.20 and 253,138.80

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Solution

The fourth proportional to 702,202.80, 1,053,304.20 and 253,138.80 is: 379,708.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,202.80 : 1,053,304.20 = 253,138.80 : x
  2. Step 2: Convert to fraction form
    702,202.80/1,053,304.20 = 253,138.80/x
  3. Step 3: Cross multiply
    702,202.80x = 1,053,304.20 × 253,138.80
  4. Step 4: Simplify right side
    702,202.80x = 266,632,161,222.96
  5. Step 5: Solve for x
    x = 266,632,161,222.96/702,202.80
  6. Step 6: Final answer
    x = 379,708.20

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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.