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Finding the Fourth Proportional to 335,998.80, 503,991.72 and 83,279.81

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Solution

The fourth proportional to 335,998.80, 503,991.72 and 83,279.81 is: 124,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,998.80 : 503,991.72 = 83,279.81 : x
  2. Step 2: Convert to fraction form
    335,998.80/503,991.72 = 83,279.81/x
  3. Step 3: Cross multiply
    335,998.80x = 503,991.72 × 83,279.81
  4. Step 4: Simplify right side
    335,998.80x = 41,972,335,943.15
  5. Step 5: Solve for x
    x = 41,972,335,943.15/335,998.80
  6. Step 6: Final answer
    x = 124,918.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.