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Finding the Fourth Proportional to 1,944,855.11, 2,917,740.88 and 665,476.51

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Solution

The fourth proportional to 1,944,855.11, 2,917,740.88 and 665,476.51 is: 998,371.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944,855.11 : 2,917,740.88 = 665,476.51 : x
  2. Step 2: Convert to fraction form
    1,944,855.11/2,917,740.88 = 665,476.51/x
  3. Step 3: Cross multiply
    1,944,855.11x = 2,917,740.88 × 665,476.51
  4. Step 4: Simplify right side
    1,944,855.11x = 1,941,688,011,444.22
  5. Step 5: Solve for x
    x = 1,941,688,011,444.22/1,944,855.11
  6. Step 6: Final answer
    x = 998,371.55

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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.