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Finding the Fourth Proportional to 507,115.50, 699,816.84 and 277,668.62

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Solution

The fourth proportional to 507,115.50, 699,816.84 and 277,668.62 is: 383,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,115.50 : 699,816.84 = 277,668.62 : x
  2. Step 2: Convert to fraction form
    507,115.50/699,816.84 = 277,668.62/x
  3. Step 3: Cross multiply
    507,115.50x = 699,816.84 × 277,668.62
  4. Step 4: Simplify right side
    507,115.50x = 194,317,176,215.56
  5. Step 5: Solve for x
    x = 194,317,176,215.56/507,115.50
  6. Step 6: Final answer
    x = 383,181.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.