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Finding the Fourth Proportional to 624,599.20, 863,399.55 and 557,283.34

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Solution

The fourth proportional to 624,599.20, 863,399.55 and 557,283.34 is: 770,347.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,599.20 : 863,399.55 = 557,283.34 : x
  2. Step 2: Convert to fraction form
    624,599.20/863,399.55 = 557,283.34/x
  3. Step 3: Cross multiply
    624,599.20x = 863,399.55 × 557,283.34
  4. Step 4: Simplify right side
    624,599.20x = 481,158,188,147.56
  5. Step 5: Solve for x
    x = 481,158,188,147.56/624,599.20
  6. Step 6: Final answer
    x = 770,347.11

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1.5x scale

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.