Home / 816,170.31-1,224,253.98-217,131.45

Finding the Fourth Proportional to 816,170.31, 1,224,253.98 and 217,131.45

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Solution

The fourth proportional to 816,170.31, 1,224,253.98 and 217,131.45 is: 325,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,170.31 : 1,224,253.98 = 217,131.45 : x
  2. Step 2: Convert to fraction form
    816,170.31/1,224,253.98 = 217,131.45/x
  3. Step 3: Cross multiply
    816,170.31x = 1,224,253.98 × 217,131.45
  4. Step 4: Simplify right side
    816,170.31x = 265,824,041,845.67
  5. Step 5: Solve for x
    x = 265,824,041,845.67/816,170.31
  6. Step 6: Final answer
    x = 325,696.78

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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.