Home / 439,720.43-659,132.55-186,839.67

Finding the Fourth Proportional to 439,720.43, 659,132.55 and 186,839.67

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Solution

The fourth proportional to 439,720.43, 659,132.55 and 186,839.67 is: 280,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,720.43 : 659,132.55 = 186,839.67 : x
  2. Step 2: Convert to fraction form
    439,720.43/659,132.55 = 186,839.67/x
  3. Step 3: Cross multiply
    439,720.43x = 659,132.55 × 186,839.67
  4. Step 4: Simplify right side
    439,720.43x = 123,152,106,228.22
  5. Step 5: Solve for x
    x = 123,152,106,228.22/439,720.43
  6. Step 6: Final answer
    x = 280,069.10

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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.