Home / 377,640.44-521,143.80-205,559.06

Finding the Fourth Proportional to 377,640.44, 521,143.80 and 205,559.06

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Solution

The fourth proportional to 377,640.44, 521,143.80 and 205,559.06 is: 283,671.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,640.44 : 521,143.80 = 205,559.06 : x
  2. Step 2: Convert to fraction form
    377,640.44/521,143.80 = 205,559.06/x
  3. Step 3: Cross multiply
    377,640.44x = 521,143.80 × 205,559.06
  4. Step 4: Simplify right side
    377,640.44x = 107,125,829,652.83
  5. Step 5: Solve for x
    x = 107,125,829,652.83/377,640.44
  6. Step 6: Final answer
    x = 283,671.50

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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.