Home / 290,661.12-401,099.44-169,813.60

Finding the Fourth Proportional to 290,661.12, 401,099.44 and 169,813.60

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Solution

The fourth proportional to 290,661.12, 401,099.44 and 169,813.60 is: 234,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,661.12 : 401,099.44 = 169,813.60 : x
  2. Step 2: Convert to fraction form
    290,661.12/401,099.44 = 169,813.60/x
  3. Step 3: Cross multiply
    290,661.12x = 401,099.44 × 169,813.60
  4. Step 4: Simplify right side
    290,661.12x = 68,112,139,864.38
  5. Step 5: Solve for x
    x = 68,112,139,864.38/290,661.12
  6. Step 6: Final answer
    x = 234,335.23

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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.