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Finding the Fourth Proportional to 519,473.93, 777,803.31 and 269,631.05

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Solution

The fourth proportional to 519,473.93, 777,803.31 and 269,631.05 is: 403,715.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,473.93 : 777,803.31 = 269,631.05 : x
  2. Step 2: Convert to fraction form
    519,473.93/777,803.31 = 269,631.05/x
  3. Step 3: Cross multiply
    519,473.93x = 777,803.31 × 269,631.05
  4. Step 4: Simplify right side
    519,473.93x = 209,719,919,279.76
  5. Step 5: Solve for x
    x = 209,719,919,279.76/519,473.93
  6. Step 6: Final answer
    x = 403,715.97

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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.