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Finding the Fourth Proportional to 303,528.40, 418,866.90 and 167,562.40

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Solution

The fourth proportional to 303,528.40, 418,866.90 and 167,562.40 is: 231,234.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,528.40 : 418,866.90 = 167,562.40 : x
  2. Step 2: Convert to fraction form
    303,528.40/418,866.90 = 167,562.40/x
  3. Step 3: Cross multiply
    303,528.40x = 418,866.90 × 167,562.40
  4. Step 4: Simplify right side
    303,528.40x = 70,186,343,044.56
  5. Step 5: Solve for x
    x = 70,186,343,044.56/303,528.40
  6. Step 6: Final answer
    x = 231,234.85

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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.