Home / 1,915,642.40-2,654,997.71-1,879,770.13

Finding the Fourth Proportional to 1,915,642.40, 2,654,997.71 and 1,879,770.13

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Solution

The fourth proportional to 1,915,642.40, 2,654,997.71 and 1,879,770.13 is: 2,605,280.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,642.40 : 2,654,997.71 = 1,879,770.13 : x
  2. Step 2: Convert to fraction form
    1,915,642.40/2,654,997.71 = 1,879,770.13/x
  3. Step 3: Cross multiply
    1,915,642.40x = 2,654,997.71 × 1,879,770.13
  4. Step 4: Simplify right side
    1,915,642.40x = 4,990,785,374,440.06
  5. Step 5: Solve for x
    x = 4,990,785,374,440.06/1,915,642.40
  6. Step 6: Final answer
    x = 2,605,280.29

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.