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Finding the Fourth Proportional to 540,939.50, 810,446.96 and 461,245.22

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Solution

The fourth proportional to 540,939.50, 810,446.96 and 461,245.22 is: 691,047.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,939.50 : 810,446.96 = 461,245.22 : x
  2. Step 2: Convert to fraction form
    540,939.50/810,446.96 = 461,245.22/x
  3. Step 3: Cross multiply
    540,939.50x = 810,446.96 × 461,245.22
  4. Step 4: Simplify right side
    540,939.50x = 373,814,786,363.53
  5. Step 5: Solve for x
    x = 373,814,786,363.53/540,939.50
  6. Step 6: Final answer
    x = 691,047.31

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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.