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Finding the Fourth Proportional to 411,521.87, 568,094.34 and 309,586.23

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Solution

The fourth proportional to 411,521.87, 568,094.34 and 309,586.23 is: 427,375.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,521.87 : 568,094.34 = 309,586.23 : x
  2. Step 2: Convert to fraction form
    411,521.87/568,094.34 = 309,586.23/x
  3. Step 3: Cross multiply
    411,521.87x = 568,094.34 × 309,586.23
  4. Step 4: Simplify right side
    411,521.87x = 175,874,181,955.99
  5. Step 5: Solve for x
    x = 175,874,181,955.99/411,521.87
  6. Step 6: Final answer
    x = 427,375.06

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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.