Home / 419,403.32-578,791.07-238,109.22

Finding the Fourth Proportional to 419,403.32, 578,791.07 and 238,109.22

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Solution

The fourth proportional to 419,403.32, 578,791.07 and 238,109.22 is: 328,598.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,403.32 : 578,791.07 = 238,109.22 : x
  2. Step 2: Convert to fraction form
    419,403.32/578,791.07 = 238,109.22/x
  3. Step 3: Cross multiply
    419,403.32x = 578,791.07 × 238,109.22
  4. Step 4: Simplify right side
    419,403.32x = 137,815,489,923.03
  5. Step 5: Solve for x
    x = 137,815,489,923.03/419,403.32
  6. Step 6: Final answer
    x = 328,598.95

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1.5x scale

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.