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Finding the Fourth Proportional to 303,391.64, 418,677.54 and 167,426.84

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Solution

The fourth proportional to 303,391.64, 418,677.54 and 167,426.84 is: 231,047.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,391.64 : 418,677.54 = 167,426.84 : x
  2. Step 2: Convert to fraction form
    303,391.64/418,677.54 = 167,426.84/x
  3. Step 3: Cross multiply
    303,391.64x = 418,677.54 × 167,426.84
  4. Step 4: Simplify right side
    303,391.64x = 70,097,857,501.17
  5. Step 5: Solve for x
    x = 70,097,857,501.17/303,391.64
  6. Step 6: Final answer
    x = 231,047.43

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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.