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Finding the Fourth Proportional to 1,764,593.25, 2,645,822.09 and 791,779.20

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Solution

The fourth proportional to 1,764,593.25, 2,645,822.09 and 791,779.20 is: 1,187,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764,593.25 : 2,645,822.09 = 791,779.20 : x
  2. Step 2: Convert to fraction form
    1,764,593.25/2,645,822.09 = 791,779.20/x
  3. Step 3: Cross multiply
    1,764,593.25x = 2,645,822.09 × 791,779.20
  4. Step 4: Simplify right side
    1,764,593.25x = 2,094,906,893,803.63
  5. Step 5: Solve for x
    x = 2,094,906,893,803.63/1,764,593.25
  6. Step 6: Final answer
    x = 1,187,189.68

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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.