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Finding the Fourth Proportional to 384,313.40, 576,470.10 and 379,064.60

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Solution

The fourth proportional to 384,313.40, 576,470.10 and 379,064.60 is: 568,596.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,313.40 : 576,470.10 = 379,064.60 : x
  2. Step 2: Convert to fraction form
    384,313.40/576,470.10 = 379,064.60/x
  3. Step 3: Cross multiply
    384,313.40x = 576,470.10 × 379,064.60
  4. Step 4: Simplify right side
    384,313.40x = 218,519,407,868.46
  5. Step 5: Solve for x
    x = 218,519,407,868.46/384,313.40
  6. Step 6: Final answer
    x = 568,596.90

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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.