Home / 290,705.28-401,083.14-169,759.32

Finding the Fourth Proportional to 290,705.28, 401,083.14 and 169,759.32

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Solution

The fourth proportional to 290,705.28, 401,083.14 and 169,759.32 is: 234,215.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,705.28 : 401,083.14 = 169,759.32 : x
  2. Step 2: Convert to fraction form
    290,705.28/401,083.14 = 169,759.32/x
  3. Step 3: Cross multiply
    290,705.28x = 401,083.14 × 169,759.32
  4. Step 4: Simplify right side
    290,705.28x = 68,087,601,109.86
  5. Step 5: Solve for x
    x = 68,087,601,109.86/290,705.28
  6. Step 6: Final answer
    x = 234,215.22

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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.