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Finding the Fourth Proportional to 645,048.35, 967,609.44 and 195,783.87

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Solution

The fourth proportional to 645,048.35, 967,609.44 and 195,783.87 is: 293,687.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,048.35 : 967,609.44 = 195,783.87 : x
  2. Step 2: Convert to fraction form
    645,048.35/967,609.44 = 195,783.87/x
  3. Step 3: Cross multiply
    645,048.35x = 967,609.44 × 195,783.87
  4. Step 4: Simplify right side
    645,048.35x = 189,442,320,811.73
  5. Step 5: Solve for x
    x = 189,442,320,811.73/645,048.35
  6. Step 6: Final answer
    x = 293,687.01

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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.