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Finding the Fourth Proportional to 624,175.51, 861,361.91 and 352,300.43

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Solution

The fourth proportional to 624,175.51, 861,361.91 and 352,300.43 is: 486,174.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,175.51 : 861,361.91 = 352,300.43 : x
  2. Step 2: Convert to fraction form
    624,175.51/861,361.91 = 352,300.43/x
  3. Step 3: Cross multiply
    624,175.51x = 861,361.91 × 352,300.43
  4. Step 4: Simplify right side
    624,175.51x = 303,458,166,091.06
  5. Step 5: Solve for x
    x = 303,458,166,091.06/624,175.51
  6. Step 6: Final answer
    x = 486,174.42

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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.