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Finding the Fourth Proportional to 339,361.71, 468,323 and 186,403.48

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Solution

The fourth proportional to 339,361.71, 468,323 and 186,403.48 is: 257,238.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,361.71 : 468,323 = 186,403.48 : x
  2. Step 2: Convert to fraction form
    339,361.71/468,323 = 186,403.48/x
  3. Step 3: Cross multiply
    339,361.71x = 468,323 × 186,403.48
  4. Step 4: Simplify right side
    339,361.71x = 87,297,036,964.04
  5. Step 5: Solve for x
    x = 87,297,036,964.04/339,361.71
  6. Step 6: Final answer
    x = 257,238.91

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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.