Home / 287,945.76-397,340.22-185,975.66

Finding the Fourth Proportional to 287,945.76, 397,340.22 and 185,975.66

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Solution

The fourth proportional to 287,945.76, 397,340.22 and 185,975.66 is: 256,630.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,945.76 : 397,340.22 = 185,975.66 : x
  2. Step 2: Convert to fraction form
    287,945.76/397,340.22 = 185,975.66/x
  3. Step 3: Cross multiply
    287,945.76x = 397,340.22 × 185,975.66
  4. Step 4: Simplify right side
    287,945.76x = 73,895,609,659.05
  5. Step 5: Solve for x
    x = 73,895,609,659.05/287,945.76
  6. Step 6: Final answer
    x = 256,630.31

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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.