Home / 419,110.31-578,356.15-237,811.43

Finding the Fourth Proportional to 419,110.31, 578,356.15 and 237,811.43

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Solution

The fourth proportional to 419,110.31, 578,356.15 and 237,811.43 is: 328,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,110.31 : 578,356.15 = 237,811.43 : x
  2. Step 2: Convert to fraction form
    419,110.31/578,356.15 = 237,811.43/x
  3. Step 3: Cross multiply
    419,110.31x = 578,356.15 × 237,811.43
  4. Step 4: Simplify right side
    419,110.31x = 137,539,699,594.49
  5. Step 5: Solve for x
    x = 137,539,699,594.49/419,110.31
  6. Step 6: Final answer
    x = 328,170.65

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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.