Home / 1,968,644-2,717,909.70-1,290,761.48

Finding the Fourth Proportional to 1,968,644, 2,717,909.70 and 1,290,761.48

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Solution

The fourth proportional to 1,968,644, 2,717,909.70 and 1,290,761.48 is: 1,782,025.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968,644 : 2,717,909.70 = 1,290,761.48 : x
  2. Step 2: Convert to fraction form
    1,968,644/2,717,909.70 = 1,290,761.48/x
  3. Step 3: Cross multiply
    1,968,644x = 2,717,909.70 × 1,290,761.48
  4. Step 4: Simplify right side
    1,968,644x = 3,508,173,146,878.36
  5. Step 5: Solve for x
    x = 3,508,173,146,878.36/1,968,644
  6. Step 6: Final answer
    x = 1,782,025.16

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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.