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Finding the Fourth Proportional to 316,283.21, 436,477.13 and 173,046.32

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Solution

The fourth proportional to 316,283.21, 436,477.13 and 173,046.32 is: 238,807.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,283.21 : 436,477.13 = 173,046.32 : x
  2. Step 2: Convert to fraction form
    316,283.21/436,477.13 = 173,046.32/x
  3. Step 3: Cross multiply
    316,283.21x = 436,477.13 × 173,046.32
  4. Step 4: Simplify right side
    316,283.21x = 75,530,761,336.62
  5. Step 5: Solve for x
    x = 75,530,761,336.62/316,283.21
  6. Step 6: Final answer
    x = 238,807.37

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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.