Home / 309,714.45-427,589.16-195,091.35

Finding the Fourth Proportional to 309,714.45, 427,589.16 and 195,091.35

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Solution

The fourth proportional to 309,714.45, 427,589.16 and 195,091.35 is: 269,341.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,714.45 : 427,589.16 = 195,091.35 : x
  2. Step 2: Convert to fraction form
    309,714.45/427,589.16 = 195,091.35/x
  3. Step 3: Cross multiply
    309,714.45x = 427,589.16 × 195,091.35
  4. Step 4: Simplify right side
    309,714.45x = 83,418,947,637.29
  5. Step 5: Solve for x
    x = 83,418,947,637.29/309,714.45
  6. Step 6: Final answer
    x = 269,341.48

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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.