Home / 890,997.40-1,336,496.10-575,810.20

Finding the Fourth Proportional to 890,997.40, 1,336,496.10 and 575,810.20

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Solution

The fourth proportional to 890,997.40, 1,336,496.10 and 575,810.20 is: 863,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,997.40 : 1,336,496.10 = 575,810.20 : x
  2. Step 2: Convert to fraction form
    890,997.40/1,336,496.10 = 575,810.20/x
  3. Step 3: Cross multiply
    890,997.40x = 1,336,496.10 × 575,810.20
  4. Step 4: Simplify right side
    890,997.40x = 769,568,086,640.22
  5. Step 5: Solve for x
    x = 769,568,086,640.22/890,997.40
  6. Step 6: Final answer
    x = 863,715.30

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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.