Home / 1,276,500.81-1,914,891.33-636,965.51

Finding the Fourth Proportional to 1,276,500.81, 1,914,891.33 and 636,965.51

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Solution

The fourth proportional to 1,276,500.81, 1,914,891.33 and 636,965.51 is: 955,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,500.81 : 1,914,891.33 = 636,965.51 : x
  2. Step 2: Convert to fraction form
    1,276,500.81/1,914,891.33 = 636,965.51/x
  3. Step 3: Cross multiply
    1,276,500.81x = 1,914,891.33 × 636,965.51
  4. Step 4: Simplify right side
    1,276,500.81x = 1,219,719,732,608.03
  5. Step 5: Solve for x
    x = 1,219,719,732,608.03/1,276,500.81
  6. Step 6: Final answer
    x = 955,518.18

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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.