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Finding the Fourth Proportional to 624,616.29, 861,970.76 and 338,136.37

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Solution

The fourth proportional to 624,616.29, 861,970.76 and 338,136.37 is: 466,628.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,616.29 : 861,970.76 = 338,136.37 : x
  2. Step 2: Convert to fraction form
    624,616.29/861,970.76 = 338,136.37/x
  3. Step 3: Cross multiply
    624,616.29x = 861,970.76 × 338,136.37
  4. Step 4: Simplify right side
    624,616.29x = 291,463,663,832.54
  5. Step 5: Solve for x
    x = 291,463,663,832.54/624,616.29
  6. Step 6: Final answer
    x = 466,628.34

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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.