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Finding the Fourth Proportional to 1,198,893.03, 1,799,619.72 and 516,117.81

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Solution

The fourth proportional to 1,198,893.03, 1,799,619.72 and 516,117.81 is: 774,727.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,893.03 : 1,799,619.72 = 516,117.81 : x
  2. Step 2: Convert to fraction form
    1,198,893.03/1,799,619.72 = 516,117.81/x
  3. Step 3: Cross multiply
    1,198,893.03x = 1,799,619.72 × 516,117.81
  4. Step 4: Simplify right side
    1,198,893.03x = 928,815,788,719.21
  5. Step 5: Solve for x
    x = 928,815,788,719.21/1,198,893.03
  6. Step 6: Final answer
    x = 774,727.82

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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.