Home / 816,087.40-1,224,131.10-217,047.40

Finding the Fourth Proportional to 816,087.40, 1,224,131.10 and 217,047.40

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Solution

The fourth proportional to 816,087.40, 1,224,131.10 and 217,047.40 is: 325,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,087.40 : 1,224,131.10 = 217,047.40 : x
  2. Step 2: Convert to fraction form
    816,087.40/1,224,131.10 = 217,047.40/x
  3. Step 3: Cross multiply
    816,087.40x = 1,224,131.10 × 217,047.40
  4. Step 4: Simplify right side
    816,087.40x = 265,694,472,514.14
  5. Step 5: Solve for x
    x = 265,694,472,514.14/816,087.40
  6. Step 6: Final answer
    x = 325,571.10

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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.