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Finding the Fourth Proportional to 624,858.68, 862,305.81 and 338,379.26

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Solution

The fourth proportional to 624,858.68, 862,305.81 and 338,379.26 is: 466,963.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,858.68 : 862,305.81 = 338,379.26 : x
  2. Step 2: Convert to fraction form
    624,858.68/862,305.81 = 338,379.26/x
  3. Step 3: Cross multiply
    624,858.68x = 862,305.81 × 338,379.26
  4. Step 4: Simplify right side
    624,858.68x = 291,786,401,881.50
  5. Step 5: Solve for x
    x = 291,786,401,881.50/624,858.68
  6. Step 6: Final answer
    x = 466,963.83

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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.