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Finding the Fourth Proportional to 624,688.20, 863,522.46 and 557,372.34

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Solution

The fourth proportional to 624,688.20, 863,522.46 and 557,372.34 is: 770,470.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,688.20 : 863,522.46 = 557,372.34 : x
  2. Step 2: Convert to fraction form
    624,688.20/863,522.46 = 557,372.34/x
  3. Step 3: Cross multiply
    624,688.20x = 863,522.46 × 557,372.34
  4. Step 4: Simplify right side
    624,688.20x = 481,303,534,172.76
  5. Step 5: Solve for x
    x = 481,303,534,172.76/624,688.20
  6. Step 6: Final answer
    x = 770,470.03

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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.