Home / 401,370.27-553,897.22-220,098.75

Finding the Fourth Proportional to 401,370.27, 553,897.22 and 220,098.75

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Solution

The fourth proportional to 401,370.27, 553,897.22 and 220,098.75 is: 303,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,370.27 : 553,897.22 = 220,098.75 : x
  2. Step 2: Convert to fraction form
    401,370.27/553,897.22 = 220,098.75/x
  3. Step 3: Cross multiply
    401,370.27x = 553,897.22 × 220,098.75
  4. Step 4: Simplify right side
    401,370.27x = 121,912,084,649.98
  5. Step 5: Solve for x
    x = 121,912,084,649.98/401,370.27
  6. Step 6: Final answer
    x = 303,739.70

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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.