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Finding the Fourth Proportional to 448,364.30, 671,213.79 and 447,773.81

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Solution

The fourth proportional to 448,364.30, 671,213.79 and 447,773.81 is: 670,329.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,364.30 : 671,213.79 = 447,773.81 : x
  2. Step 2: Convert to fraction form
    448,364.30/671,213.79 = 447,773.81/x
  3. Step 3: Cross multiply
    448,364.30x = 671,213.79 × 447,773.81
  4. Step 4: Simplify right side
    448,364.30x = 300,551,956,072.84
  5. Step 5: Solve for x
    x = 300,551,956,072.84/448,364.30
  6. Step 6: Final answer
    x = 670,329.81

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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.