Home / 1,913,416.28-2,640,514.60-1,053,976.53

Finding the Fourth Proportional to 1,913,416.28, 2,640,514.60 and 1,053,976.53

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Solution

The fourth proportional to 1,913,416.28, 2,640,514.60 and 1,053,976.53 is: 1,454,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,416.28 : 2,640,514.60 = 1,053,976.53 : x
  2. Step 2: Convert to fraction form
    1,913,416.28/2,640,514.60 = 1,053,976.53/x
  3. Step 3: Cross multiply
    1,913,416.28x = 2,640,514.60 × 1,053,976.53
  4. Step 4: Simplify right side
    1,913,416.28x = 2,783,040,415,522.34
  5. Step 5: Solve for x
    x = 2,783,040,415,522.34/1,913,416.28
  6. Step 6: Final answer
    x = 1,454,487.69

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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.