Home / 961,786.78-1,326,282.87-639,549.34

Finding the Fourth Proportional to 961,786.78, 1,326,282.87 and 639,549.34

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Solution

The fourth proportional to 961,786.78, 1,326,282.87 and 639,549.34 is: 881,924.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,786.78 : 1,326,282.87 = 639,549.34 : x
  2. Step 2: Convert to fraction form
    961,786.78/1,326,282.87 = 639,549.34/x
  3. Step 3: Cross multiply
    961,786.78x = 1,326,282.87 × 639,549.34
  4. Step 4: Simplify right side
    961,786.78x = 848,223,334,161.81
  5. Step 5: Solve for x
    x = 848,223,334,161.81/961,786.78
  6. Step 6: Final answer
    x = 881,924.51

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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.