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Finding the Fourth Proportional to 303,555.53, 418,907.25 and 167,589.74

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Solution

The fourth proportional to 303,555.53, 418,907.25 and 167,589.74 is: 231,274.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,555.53 : 418,907.25 = 167,589.74 : x
  2. Step 2: Convert to fraction form
    303,555.53/418,907.25 = 167,589.74/x
  3. Step 3: Cross multiply
    303,555.53x = 418,907.25 × 167,589.74
  4. Step 4: Simplify right side
    303,555.53x = 70,204,557,111.62
  5. Step 5: Solve for x
    x = 70,204,557,111.62/303,555.53
  6. Step 6: Final answer
    x = 231,274.18

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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.