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Finding the Fourth Proportional to 827,191.81, 1,141,234 and 540,879.49

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Solution

The fourth proportional to 827,191.81, 1,141,234 and 540,879.49 is: 746,223.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,191.81 : 1,141,234 = 540,879.49 : x
  2. Step 2: Convert to fraction form
    827,191.81/1,141,234 = 540,879.49/x
  3. Step 3: Cross multiply
    827,191.81x = 1,141,234 × 540,879.49
  4. Step 4: Simplify right side
    827,191.81x = 617,270,063,890.66
  5. Step 5: Solve for x
    x = 617,270,063,890.66/827,191.81
  6. Step 6: Final answer
    x = 746,223.62

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.