Home / 1,431,399.33-1,975,335.17-819,561.47

Finding the Fourth Proportional to 1,431,399.33, 1,975,335.17 and 819,561.47

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Solution

The fourth proportional to 1,431,399.33, 1,975,335.17 and 819,561.47 is: 1,130,997.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,399.33 : 1,975,335.17 = 819,561.47 : x
  2. Step 2: Convert to fraction form
    1,431,399.33/1,975,335.17 = 819,561.47/x
  3. Step 3: Cross multiply
    1,431,399.33x = 1,975,335.17 × 819,561.47
  4. Step 4: Simplify right side
    1,431,399.33x = 1,618,908,595,667.90
  5. Step 5: Solve for x
    x = 1,618,908,595,667.90/1,431,399.33
  6. Step 6: Final answer
    x = 1,130,997.17

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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.