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Finding the Fourth Proportional to 335,115.80, 502,673.70 and 202,405.40

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Solution

The fourth proportional to 335,115.80, 502,673.70 and 202,405.40 is: 303,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,115.80 : 502,673.70 = 202,405.40 : x
  2. Step 2: Convert to fraction form
    335,115.80/502,673.70 = 202,405.40/x
  3. Step 3: Cross multiply
    335,115.80x = 502,673.70 × 202,405.40
  4. Step 4: Simplify right side
    335,115.80x = 101,743,871,317.98
  5. Step 5: Solve for x
    x = 101,743,871,317.98/335,115.80
  6. Step 6: Final answer
    x = 303,608.10

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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.