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Finding the Fourth Proportional to 376,955.56, 520,191.96 and 207,189.64

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Solution

The fourth proportional to 376,955.56, 520,191.96 and 207,189.64 is: 285,918.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,955.56 : 520,191.96 = 207,189.64 : x
  2. Step 2: Convert to fraction form
    376,955.56/520,191.96 = 207,189.64/x
  3. Step 3: Cross multiply
    376,955.56x = 520,191.96 × 207,189.64
  4. Step 4: Simplify right side
    376,955.56x = 107,778,384,923.29
  5. Step 5: Solve for x
    x = 107,778,384,923.29/376,955.56
  6. Step 6: Final answer
    x = 285,918.01

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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.