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Finding the Fourth Proportional to 641,975.76, 963,123.84 and 192,704.94

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Solution

The fourth proportional to 641,975.76, 963,123.84 and 192,704.94 is: 289,105.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,975.76 : 963,123.84 = 192,704.94 : x
  2. Step 2: Convert to fraction form
    641,975.76/963,123.84 = 192,704.94/x
  3. Step 3: Cross multiply
    641,975.76x = 963,123.84 × 192,704.94
  4. Step 4: Simplify right side
    641,975.76x = 185,598,721,799.77
  5. Step 5: Solve for x
    x = 185,598,721,799.77/641,975.76
  6. Step 6: Final answer
    x = 289,105.50

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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.