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Finding the Fourth Proportional to 297,009.70, 445,428.15 and 163,953.70

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Solution

The fourth proportional to 297,009.70, 445,428.15 and 163,953.70 is: 245,882.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,009.70 : 445,428.15 = 163,953.70 : x
  2. Step 2: Convert to fraction form
    297,009.70/445,428.15 = 163,953.70/x
  3. Step 3: Cross multiply
    297,009.70x = 445,428.15 × 163,953.70
  4. Step 4: Simplify right side
    297,009.70x = 73,029,593,276.66
  5. Step 5: Solve for x
    x = 73,029,593,276.66/297,009.70
  6. Step 6: Final answer
    x = 245,882.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.