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Finding the Fourth Proportional to 1,254,782.92, 1,731,611.40 and 681,823.09

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Solution

The fourth proportional to 1,254,782.92, 1,731,611.40 and 681,823.09 is: 940,921.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,782.92 : 1,731,611.40 = 681,823.09 : x
  2. Step 2: Convert to fraction form
    1,254,782.92/1,731,611.40 = 681,823.09/x
  3. Step 3: Cross multiply
    1,254,782.92x = 1,731,611.40 × 681,823.09
  4. Step 4: Simplify right side
    1,254,782.92x = 1,180,652,635,427.23
  5. Step 5: Solve for x
    x = 1,180,652,635,427.23/1,254,782.92
  6. Step 6: Final answer
    x = 940,921.83

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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.