Home / 1,781,032.56-2,669,963.21-643,541.06

Finding the Fourth Proportional to 1,781,032.56, 2,669,963.21 and 643,541.06

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Solution

The fourth proportional to 1,781,032.56, 2,669,963.21 and 643,541.06 is: 964,738.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781,032.56 : 2,669,963.21 = 643,541.06 : x
  2. Step 2: Convert to fraction form
    1,781,032.56/2,669,963.21 = 643,541.06/x
  3. Step 3: Cross multiply
    1,781,032.56x = 2,669,963.21 × 643,541.06
  4. Step 4: Simplify right side
    1,781,032.56x = 1,718,230,954,324.40
  5. Step 5: Solve for x
    x = 1,718,230,954,324.40/1,781,032.56
  6. Step 6: Final answer
    x = 964,738.65

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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.