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Finding the Fourth Proportional to 508,461.52, 701,674.98 and 279,022.66

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Solution

The fourth proportional to 508,461.52, 701,674.98 and 279,022.66 is: 385,050.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,461.52 : 701,674.98 = 279,022.66 : x
  2. Step 2: Convert to fraction form
    508,461.52/701,674.98 = 279,022.66/x
  3. Step 3: Cross multiply
    508,461.52x = 701,674.98 × 279,022.66
  4. Step 4: Simplify right side
    508,461.52x = 195,783,219,375.05
  5. Step 5: Solve for x
    x = 195,783,219,375.05/508,461.52
  6. Step 6: Final answer
    x = 385,050.22

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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.