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Finding the Fourth Proportional to 287,673.48, 396,863.82 and 190,901.16

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Solution

The fourth proportional to 287,673.48, 396,863.82 and 190,901.16 is: 263,360.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,673.48 : 396,863.82 = 190,901.16 : x
  2. Step 2: Convert to fraction form
    287,673.48/396,863.82 = 190,901.16/x
  3. Step 3: Cross multiply
    287,673.48x = 396,863.82 × 190,901.16
  4. Step 4: Simplify right side
    287,673.48x = 75,761,763,600.03
  5. Step 5: Solve for x
    x = 75,761,763,600.03/287,673.48
  6. Step 6: Final answer
    x = 263,360.26

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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.