Home / 1,913,020.76-2,640,087.96-1,053,580.79

Finding the Fourth Proportional to 1,913,020.76, 2,640,087.96 and 1,053,580.79

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Solution

The fourth proportional to 1,913,020.76, 2,640,087.96 and 1,053,580.79 is: 1,454,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,020.76 : 2,640,087.96 = 1,053,580.79 : x
  2. Step 2: Convert to fraction form
    1,913,020.76/2,640,087.96 = 1,053,580.79/x
  3. Step 3: Cross multiply
    1,913,020.76x = 2,640,087.96 × 1,053,580.79
  4. Step 4: Simplify right side
    1,913,020.76x = 2,781,545,961,215.58
  5. Step 5: Solve for x
    x = 2,781,545,961,215.58/1,913,020.76
  6. Step 6: Final answer
    x = 1,454,007.20

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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.