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Finding the Fourth Proportional to 577,792.40, 866,947.80 and 262,086.80

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Solution

The fourth proportional to 577,792.40, 866,947.80 and 262,086.80 is: 393,247.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,792.40 : 866,947.80 = 262,086.80 : x
  2. Step 2: Convert to fraction form
    577,792.40/866,947.80 = 262,086.80/x
  3. Step 3: Cross multiply
    577,792.40x = 866,947.80 × 262,086.80
  4. Step 4: Simplify right side
    577,792.40x = 227,215,574,669.04
  5. Step 5: Solve for x
    x = 227,215,574,669.04/577,792.40
  6. Step 6: Final answer
    x = 393,247.77

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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.