Home / 1,278,261.09-1,915,564.01-938,637.27

Finding the Fourth Proportional to 1,278,261.09, 1,915,564.01 and 938,637.27

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Solution

The fourth proportional to 1,278,261.09, 1,915,564.01 and 938,637.27 is: 1,406,613.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,261.09 : 1,915,564.01 = 938,637.27 : x
  2. Step 2: Convert to fraction form
    1,278,261.09/1,915,564.01 = 938,637.27/x
  3. Step 3: Cross multiply
    1,278,261.09x = 1,915,564.01 × 938,637.27
  4. Step 4: Simplify right side
    1,278,261.09x = 1,798,019,768,163.47
  5. Step 5: Solve for x
    x = 1,798,019,768,163.47/1,278,261.09
  6. Step 6: Final answer
    x = 1,406,613.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.