Home / 1,278,505.39-1,765,000.79-933,954.48

Finding the Fourth Proportional to 1,278,505.39, 1,765,000.79 and 933,954.48

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Solution

The fourth proportional to 1,278,505.39, 1,765,000.79 and 933,954.48 is: 1,289,341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,505.39 : 1,765,000.79 = 933,954.48 : x
  2. Step 2: Convert to fraction form
    1,278,505.39/1,765,000.79 = 933,954.48/x
  3. Step 3: Cross multiply
    1,278,505.39x = 1,765,000.79 × 933,954.48
  4. Step 4: Simplify right side
    1,278,505.39x = 1,648,430,395,024.04
  5. Step 5: Solve for x
    x = 1,648,430,395,024.04/1,278,505.39
  6. Step 6: Final answer
    x = 1,289,341.76

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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.