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Finding the Fourth Proportional to 611,183.40, 916,754.92 and 251,341.80

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Solution

The fourth proportional to 611,183.40, 916,754.92 and 251,341.80 is: 377,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,183.40 : 916,754.92 = 251,341.80 : x
  2. Step 2: Convert to fraction form
    611,183.40/916,754.92 = 251,341.80/x
  3. Step 3: Cross multiply
    611,183.40x = 916,754.92 × 251,341.80
  4. Step 4: Simplify right side
    611,183.40x = 230,418,831,751.66
  5. Step 5: Solve for x
    x = 230,418,831,751.66/611,183.40
  6. Step 6: Final answer
    x = 377,004.40

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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.