Home / 292,699.23-439,015.31-76,578.83

Finding the Fourth Proportional to 292,699.23, 439,015.31 and 76,578.83

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Solution

The fourth proportional to 292,699.23, 439,015.31 and 76,578.83 is: 114,859.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,699.23 : 439,015.31 = 76,578.83 : x
  2. Step 2: Convert to fraction form
    292,699.23/439,015.31 = 76,578.83/x
  3. Step 3: Cross multiply
    292,699.23x = 439,015.31 × 76,578.83
  4. Step 4: Simplify right side
    292,699.23x = 33,619,278,791.89
  5. Step 5: Solve for x
    x = 33,619,278,791.89/292,699.23
  6. Step 6: Final answer
    x = 114,859.47

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1.5x scale

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.