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Finding the Fourth Proportional to 309,997.80, 464,553.90 and 176,596.20

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Solution

The fourth proportional to 309,997.80, 464,553.90 and 176,596.20 is: 264,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,997.80 : 464,553.90 = 176,596.20 : x
  2. Step 2: Convert to fraction form
    309,997.80/464,553.90 = 176,596.20/x
  3. Step 3: Cross multiply
    309,997.80x = 464,553.90 × 176,596.20
  4. Step 4: Simplify right side
    309,997.80x = 82,038,453,435.18
  5. Step 5: Solve for x
    x = 82,038,453,435.18/309,997.80
  6. Step 6: Final answer
    x = 264,642.05

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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.