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Finding the Fourth Proportional to 569,995.20, 854,560.80 and 289,713.60

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Solution

The fourth proportional to 569,995.20, 854,560.80 and 289,713.60 is: 434,350.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,995.20 : 854,560.80 = 289,713.60 : x
  2. Step 2: Convert to fraction form
    569,995.20/854,560.80 = 289,713.60/x
  3. Step 3: Cross multiply
    569,995.20x = 854,560.80 × 289,713.60
  4. Step 4: Simplify right side
    569,995.20x = 247,577,885,786.88
  5. Step 5: Solve for x
    x = 247,577,885,786.88/569,995.20
  6. Step 6: Final answer
    x = 434,350.83

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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.