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Finding the Fourth Proportional to 672,161.85, 927,571.64 and 366,240.76

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Solution

The fourth proportional to 672,161.85, 927,571.64 and 366,240.76 is: 505,405.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,161.85 : 927,571.64 = 366,240.76 : x
  2. Step 2: Convert to fraction form
    672,161.85/927,571.64 = 366,240.76/x
  3. Step 3: Cross multiply
    672,161.85x = 927,571.64 × 366,240.76
  4. Step 4: Simplify right side
    672,161.85x = 339,714,538,237.91
  5. Step 5: Solve for x
    x = 339,714,538,237.91/672,161.85
  6. Step 6: Final answer
    x = 505,405.86

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Half scale
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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.