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Finding the Fourth Proportional to 297,006.70, 445,510.05 and 263,764.30

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Solution

The fourth proportional to 297,006.70, 445,510.05 and 263,764.30 is: 395,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,006.70 : 445,510.05 = 263,764.30 : x
  2. Step 2: Convert to fraction form
    297,006.70/445,510.05 = 263,764.30/x
  3. Step 3: Cross multiply
    297,006.70x = 445,510.05 × 263,764.30
  4. Step 4: Simplify right side
    297,006.70x = 117,509,646,481.22
  5. Step 5: Solve for x
    x = 117,509,646,481.22/297,006.70
  6. Step 6: Final answer
    x = 395,646.45

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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.