Home / 939,309.39-1,297,167.80-649,663.11

Finding the Fourth Proportional to 939,309.39, 1,297,167.80 and 649,663.11

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Solution

The fourth proportional to 939,309.39, 1,297,167.80 and 649,663.11 is: 897,171.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,309.39 : 1,297,167.80 = 649,663.11 : x
  2. Step 2: Convert to fraction form
    939,309.39/1,297,167.80 = 649,663.11/x
  3. Step 3: Cross multiply
    939,309.39x = 1,297,167.80 × 649,663.11
  4. Step 4: Simplify right side
    939,309.39x = 842,722,063,891.54
  5. Step 5: Solve for x
    x = 842,722,063,891.54/939,309.39
  6. Step 6: Final answer
    x = 897,171.98

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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.