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Finding the Fourth Proportional to 636,103.53, 877,824.14 and 345,716.71

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Solution

The fourth proportional to 636,103.53, 877,824.14 and 345,716.71 is: 477,089.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,103.53 : 877,824.14 = 345,716.71 : x
  2. Step 2: Convert to fraction form
    636,103.53/877,824.14 = 345,716.71/x
  3. Step 3: Cross multiply
    636,103.53x = 877,824.14 × 345,716.71
  4. Step 4: Simplify right side
    636,103.53x = 303,478,469,716.24
  5. Step 5: Solve for x
    x = 303,478,469,716.24/636,103.53
  6. Step 6: Final answer
    x = 477,089.74

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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.