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Finding the Fourth Proportional to 507,980.62, 701,014.23 and 281,626.12

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Solution

The fourth proportional to 507,980.62, 701,014.23 and 281,626.12 is: 388,644.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,980.62 : 701,014.23 = 281,626.12 : x
  2. Step 2: Convert to fraction form
    507,980.62/701,014.23 = 281,626.12/x
  3. Step 3: Cross multiply
    507,980.62x = 701,014.23 × 281,626.12
  4. Step 4: Simplify right side
    507,980.62x = 197,423,917,659.69
  5. Step 5: Solve for x
    x = 197,423,917,659.69/507,980.62
  6. Step 6: Final answer
    x = 388,644.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.