Home / 439,734.30-661,010.85-408,533.10

Finding the Fourth Proportional to 439,734.30, 661,010.85 and 408,533.10

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Solution

The fourth proportional to 439,734.30, 661,010.85 and 408,533.10 is: 614,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,734.30 : 661,010.85 = 408,533.10 : x
  2. Step 2: Convert to fraction form
    439,734.30/661,010.85 = 408,533.10/x
  3. Step 3: Cross multiply
    439,734.30x = 661,010.85 × 408,533.10
  4. Step 4: Simplify right side
    439,734.30x = 270,044,811,684.14
  5. Step 5: Solve for x
    x = 270,044,811,684.14/439,734.30
  6. Step 6: Final answer
    x = 614,109.05

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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.