Home / 439,621.84-606,682.38-258,337.84

Finding the Fourth Proportional to 439,621.84, 606,682.38 and 258,337.84

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Solution

The fourth proportional to 439,621.84, 606,682.38 and 258,337.84 is: 356,508.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,621.84 : 606,682.38 = 258,337.84 : x
  2. Step 2: Convert to fraction form
    439,621.84/606,682.38 = 258,337.84/x
  3. Step 3: Cross multiply
    439,621.84x = 606,682.38 × 258,337.84
  4. Step 4: Simplify right side
    439,621.84x = 156,729,015,615.26
  5. Step 5: Solve for x
    x = 156,729,015,615.26/439,621.84
  6. Step 6: Final answer
    x = 356,508.71

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1.5x scale

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.