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Finding the Fourth Proportional to 347,222.80, 520,834.20 and 207,254.80

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Solution

The fourth proportional to 347,222.80, 520,834.20 and 207,254.80 is: 310,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,222.80 : 520,834.20 = 207,254.80 : x
  2. Step 2: Convert to fraction form
    347,222.80/520,834.20 = 207,254.80/x
  3. Step 3: Cross multiply
    347,222.80x = 520,834.20 × 207,254.80
  4. Step 4: Simplify right side
    347,222.80x = 107,945,387,954.16
  5. Step 5: Solve for x
    x = 107,945,387,954.16/347,222.80
  6. Step 6: Final answer
    x = 310,882.20

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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.