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Finding the Fourth Proportional to 578,048.70, 866,996.50 and 262,433.02

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Solution

The fourth proportional to 578,048.70, 866,996.50 and 262,433.02 is: 393,614.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,048.70 : 866,996.50 = 262,433.02 : x
  2. Step 2: Convert to fraction form
    578,048.70/866,996.50 = 262,433.02/x
  3. Step 3: Cross multiply
    578,048.70x = 866,996.50 × 262,433.02
  4. Step 4: Simplify right side
    578,048.70x = 227,528,509,824.43
  5. Step 5: Solve for x
    x = 227,528,509,824.43/578,048.70
  6. Step 6: Final answer
    x = 393,614.78

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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.