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Finding the Fourth Proportional to 303,353.80, 418,627.75 and 167,387.64

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Solution

The fourth proportional to 303,353.80, 418,627.75 and 167,387.64 is: 230,994.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,353.80 : 418,627.75 = 167,387.64 : x
  2. Step 2: Convert to fraction form
    303,353.80/418,627.75 = 167,387.64/x
  3. Step 3: Cross multiply
    303,353.80x = 418,627.75 × 167,387.64
  4. Step 4: Simplify right side
    303,353.80x = 70,073,111,791.32
  5. Step 5: Solve for x
    x = 70,073,111,791.32/303,353.80
  6. Step 6: Final answer
    x = 230,994.67

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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.