Home / 827,499.80-1,241,249.70-512,571.80

Finding the Fourth Proportional to 827,499.80, 1,241,249.70 and 512,571.80

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Solution

The fourth proportional to 827,499.80, 1,241,249.70 and 512,571.80 is: 768,857.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,499.80 : 1,241,249.70 = 512,571.80 : x
  2. Step 2: Convert to fraction form
    827,499.80/1,241,249.70 = 512,571.80/x
  3. Step 3: Cross multiply
    827,499.80x = 1,241,249.70 × 512,571.80
  4. Step 4: Simplify right side
    827,499.80x = 636,229,592,978.46
  5. Step 5: Solve for x
    x = 636,229,592,978.46/827,499.80
  6. Step 6: Final answer
    x = 768,857.70

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Half scale
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Double scale
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Similar ratio
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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.