Home / 439,136.76-605,766.63-303,242.05

Finding the Fourth Proportional to 439,136.76, 605,766.63 and 303,242.05

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Solution

The fourth proportional to 439,136.76, 605,766.63 and 303,242.05 is: 418,306.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,136.76 : 605,766.63 = 303,242.05 : x
  2. Step 2: Convert to fraction form
    439,136.76/605,766.63 = 303,242.05/x
  3. Step 3: Cross multiply
    439,136.76x = 605,766.63 × 303,242.05
  4. Step 4: Simplify right side
    439,136.76x = 183,693,910,631.12
  5. Step 5: Solve for x
    x = 183,693,910,631.12/439,136.76
  6. Step 6: Final answer
    x = 418,306.84

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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.