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Finding the Fourth Proportional to 611,079.96, 916,673.26 and 251,272.70

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Solution

The fourth proportional to 611,079.96, 916,673.26 and 251,272.70 is: 376,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,079.96 : 916,673.26 = 251,272.70 : x
  2. Step 2: Convert to fraction form
    611,079.96/916,673.26 = 251,272.70/x
  3. Step 3: Cross multiply
    611,079.96x = 916,673.26 × 251,272.70
  4. Step 4: Simplify right side
    611,079.96x = 230,334,965,058.00
  5. Step 5: Solve for x
    x = 230,334,965,058.00/611,079.96
  6. Step 6: Final answer
    x = 376,930.97

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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.