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Finding the Fourth Proportional to 347,020.20, 521,696.70 and 295,698.60

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Solution

The fourth proportional to 347,020.20, 521,696.70 and 295,698.60 is: 444,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,020.20 : 521,696.70 = 295,698.60 : x
  2. Step 2: Convert to fraction form
    347,020.20/521,696.70 = 295,698.60/x
  3. Step 3: Cross multiply
    347,020.20x = 521,696.70 × 295,698.60
  4. Step 4: Simplify right side
    347,020.20x = 154,264,983,814.62
  5. Step 5: Solve for x
    x = 154,264,983,814.62/347,020.20
  6. Step 6: Final answer
    x = 444,541.80

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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.