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Finding the Fourth Proportional to 303,390.64, 418,676.16 and 167,425.84

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Solution

The fourth proportional to 303,390.64, 418,676.16 and 167,425.84 is: 231,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,390.64 : 418,676.16 = 167,425.84 : x
  2. Step 2: Convert to fraction form
    303,390.64/418,676.16 = 167,425.84/x
  3. Step 3: Cross multiply
    303,390.64x = 418,676.16 × 167,425.84
  4. Step 4: Simplify right side
    303,390.64x = 70,097,207,775.97
  5. Step 5: Solve for x
    x = 70,097,207,775.97/303,390.64
  6. Step 6: Final answer
    x = 231,046.05

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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.