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Finding the Fourth Proportional to 624,858.43, 862,305.47 and 338,379.01

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Solution

The fourth proportional to 624,858.43, 862,305.47 and 338,379.01 is: 466,963.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,858.43 : 862,305.47 = 338,379.01 : x
  2. Step 2: Convert to fraction form
    624,858.43/862,305.47 = 338,379.01/x
  3. Step 3: Cross multiply
    624,858.43x = 862,305.47 × 338,379.01
  4. Step 4: Simplify right side
    624,858.43x = 291,786,069,564.29
  5. Step 5: Solve for x
    x = 291,786,069,564.29/624,858.43
  6. Step 6: Final answer
    x = 466,963.48

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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.