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Finding the Fourth Proportional to 552,861.61, 763,184.43 and 371,678.63

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Solution

The fourth proportional to 552,861.61, 763,184.43 and 371,678.63 is: 513,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,861.61 : 763,184.43 = 371,678.63 : x
  2. Step 2: Convert to fraction form
    552,861.61/763,184.43 = 371,678.63/x
  3. Step 3: Cross multiply
    552,861.61x = 763,184.43 × 371,678.63
  4. Step 4: Simplify right side
    552,861.61x = 283,659,339,563.81
  5. Step 5: Solve for x
    x = 283,659,339,563.81/552,861.61
  6. Step 6: Final answer
    x = 513,074.76

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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.