Home / 827,470.70-1,241,206.10-266,505.20

Finding the Fourth Proportional to 827,470.70, 1,241,206.10 and 266,505.20

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Solution

The fourth proportional to 827,470.70, 1,241,206.10 and 266,505.20 is: 399,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,470.70 : 1,241,206.10 = 266,505.20 : x
  2. Step 2: Convert to fraction form
    827,470.70/1,241,206.10 = 266,505.20/x
  3. Step 3: Cross multiply
    827,470.70x = 1,241,206.10 × 266,505.20
  4. Step 4: Simplify right side
    827,470.70x = 330,787,879,921.72
  5. Step 5: Solve for x
    x = 330,787,879,921.72/827,470.70
  6. Step 6: Final answer
    x = 399,757.82

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Double scale
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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.