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Finding the Fourth Proportional to 303,285.44, 418,535.30 and 167,321

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Solution

The fourth proportional to 303,285.44, 418,535.30 and 167,321 is: 230,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,285.44 : 418,535.30 = 167,321 : x
  2. Step 2: Convert to fraction form
    303,285.44/418,535.30 = 167,321/x
  3. Step 3: Cross multiply
    303,285.44x = 418,535.30 × 167,321
  4. Step 4: Simplify right side
    303,285.44x = 70,029,744,931.30
  5. Step 5: Solve for x
    x = 70,029,744,931.30/303,285.44
  6. Step 6: Final answer
    x = 230,903.75

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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.