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Finding the Fourth Proportional to 501,689.50, 752,531.31 and 122,612.23

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Solution

The fourth proportional to 501,689.50, 752,531.31 and 122,612.23 is: 183,917.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,689.50 : 752,531.31 = 122,612.23 : x
  2. Step 2: Convert to fraction form
    501,689.50/752,531.31 = 122,612.23/x
  3. Step 3: Cross multiply
    501,689.50x = 752,531.31 × 122,612.23
  4. Step 4: Simplify right side
    501,689.50x = 92,269,543,004.59
  5. Step 5: Solve for x
    x = 92,269,543,004.59/501,689.50
  6. Step 6: Final answer
    x = 183,917.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.