Home / 287,841.60-397,383.72-199,596.15

Finding the Fourth Proportional to 287,841.60, 397,383.72 and 199,596.15

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Solution

The fourth proportional to 287,841.60, 397,383.72 and 199,596.15 is: 275,555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,841.60 : 397,383.72 = 199,596.15 : x
  2. Step 2: Convert to fraction form
    287,841.60/397,383.72 = 199,596.15/x
  3. Step 3: Cross multiply
    287,841.60x = 397,383.72 × 199,596.15
  4. Step 4: Simplify right side
    287,841.60x = 79,316,260,584.68
  5. Step 5: Solve for x
    x = 79,316,260,584.68/287,841.60
  6. Step 6: Final answer
    x = 275,555.24

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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.