Home / 439,623.63-606,687.50-258,359.60

Finding the Fourth Proportional to 439,623.63, 606,687.50 and 258,359.60

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Solution

The fourth proportional to 439,623.63, 606,687.50 and 258,359.60 is: 356,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,623.63 : 606,687.50 = 258,359.60 : x
  2. Step 2: Convert to fraction form
    439,623.63/606,687.50 = 258,359.60/x
  3. Step 3: Cross multiply
    439,623.63x = 606,687.50 × 258,359.60
  4. Step 4: Simplify right side
    439,623.63x = 156,743,539,825
  5. Step 5: Solve for x
    x = 156,743,539,825/439,623.63
  6. Step 6: Final answer
    x = 356,540.30

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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.