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Finding the Fourth Proportional to 1,764,718.82, 2,646,009.18 and 791,904.68

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Solution

The fourth proportional to 1,764,718.82, 2,646,009.18 and 791,904.68 is: 1,187,377.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764,718.82 : 2,646,009.18 = 791,904.68 : x
  2. Step 2: Convert to fraction form
    1,764,718.82/2,646,009.18 = 791,904.68/x
  3. Step 3: Cross multiply
    1,764,718.82x = 2,646,009.18 × 791,904.68
  4. Step 4: Simplify right side
    1,764,718.82x = 2,095,387,052,964.96
  5. Step 5: Solve for x
    x = 2,095,387,052,964.96/1,764,718.82
  6. Step 6: Final answer
    x = 1,187,377.29

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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.