Home / 683,997.80-1,026,515.10-447,261.80

Finding the Fourth Proportional to 683,997.80, 1,026,515.10 and 447,261.80

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Solution

The fourth proportional to 683,997.80, 1,026,515.10 and 447,261.80 is: 671,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,997.80 : 1,026,515.10 = 447,261.80 : x
  2. Step 2: Convert to fraction form
    683,997.80/1,026,515.10 = 447,261.80/x
  3. Step 3: Cross multiply
    683,997.80x = 1,026,515.10 × 447,261.80
  4. Step 4: Simplify right side
    683,997.80x = 459,120,991,353.18
  5. Step 5: Solve for x
    x = 459,120,991,353.18/683,997.80
  6. Step 6: Final answer
    x = 671,231.68

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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.