Home / 439,733.20-659,599.80-253,109.20

Finding the Fourth Proportional to 439,733.20, 659,599.80 and 253,109.20

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Solution

The fourth proportional to 439,733.20, 659,599.80 and 253,109.20 is: 379,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,733.20 : 659,599.80 = 253,109.20 : x
  2. Step 2: Convert to fraction form
    439,733.20/659,599.80 = 253,109.20/x
  3. Step 3: Cross multiply
    439,733.20x = 659,599.80 × 253,109.20
  4. Step 4: Simplify right side
    439,733.20x = 166,950,777,698.16
  5. Step 5: Solve for x
    x = 166,950,777,698.16/439,733.20
  6. Step 6: Final answer
    x = 379,663.80

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1.5x scale

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.