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Finding the Fourth Proportional to 293,321.70, 439,982.55 and 200,009.70

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Solution

The fourth proportional to 293,321.70, 439,982.55 and 200,009.70 is: 300,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,321.70 : 439,982.55 = 200,009.70 : x
  2. Step 2: Convert to fraction form
    293,321.70/439,982.55 = 200,009.70/x
  3. Step 3: Cross multiply
    293,321.70x = 439,982.55 × 200,009.70
  4. Step 4: Simplify right side
    293,321.70x = 88,000,777,830.74
  5. Step 5: Solve for x
    x = 88,000,777,830.74/293,321.70
  6. Step 6: Final answer
    x = 300,014.55

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Similar ratio
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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.