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Finding the Fourth Proportional to 624,542.55, 861,872.90 and 348,900.27

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Solution

The fourth proportional to 624,542.55, 861,872.90 and 348,900.27 is: 481,484.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,542.55 : 861,872.90 = 348,900.27 : x
  2. Step 2: Convert to fraction form
    624,542.55/861,872.90 = 348,900.27/x
  3. Step 3: Cross multiply
    624,542.55x = 861,872.90 × 348,900.27
  4. Step 4: Simplify right side
    624,542.55x = 300,707,685,771.18
  5. Step 5: Solve for x
    x = 300,707,685,771.18/624,542.55
  6. Step 6: Final answer
    x = 481,484.71

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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.