Home / 1,913,273-2,640,316.25-1,053,833.26

Finding the Fourth Proportional to 1,913,273, 2,640,316.25 and 1,053,833.26

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Solution

The fourth proportional to 1,913,273, 2,640,316.25 and 1,053,833.26 is: 1,454,289.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,273 : 2,640,316.25 = 1,053,833.26 : x
  2. Step 2: Convert to fraction form
    1,913,273/2,640,316.25 = 1,053,833.26/x
  3. Step 3: Cross multiply
    1,913,273x = 2,640,316.25 × 1,053,833.26
  4. Step 4: Simplify right side
    1,913,273x = 2,782,453,081,168.48
  5. Step 5: Solve for x
    x = 2,782,453,081,168.48/1,913,273
  6. Step 6: Final answer
    x = 1,454,289.63

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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.