Home / 1,413,309.40-1,949,680.20-839,943.88

Finding the Fourth Proportional to 1,413,309.40, 1,949,680.20 and 839,943.88

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Solution

The fourth proportional to 1,413,309.40, 1,949,680.20 and 839,943.88 is: 1,158,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413,309.40 : 1,949,680.20 = 839,943.88 : x
  2. Step 2: Convert to fraction form
    1,413,309.40/1,949,680.20 = 839,943.88/x
  3. Step 3: Cross multiply
    1,413,309.40x = 1,949,680.20 × 839,943.88
  4. Step 4: Simplify right side
    1,413,309.40x = 1,637,621,951,947.18
  5. Step 5: Solve for x
    x = 1,637,621,951,947.18/1,413,309.40
  6. Step 6: Final answer
    x = 1,158,714.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.