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Finding the Fourth Proportional to 578,049.70, 866,998 and 262,434.02

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Solution

The fourth proportional to 578,049.70, 866,998 and 262,434.02 is: 393,616.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,049.70 : 866,998 = 262,434.02 : x
  2. Step 2: Convert to fraction form
    578,049.70/866,998 = 262,434.02/x
  3. Step 3: Cross multiply
    578,049.70x = 866,998 × 262,434.02
  4. Step 4: Simplify right side
    578,049.70x = 227,529,770,471.96
  5. Step 5: Solve for x
    x = 227,529,770,471.96/578,049.70
  6. Step 6: Final answer
    x = 393,616.28

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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.