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Finding the Fourth Proportional to 461,327.80, 691,991.70 and 368,015.80

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Solution

The fourth proportional to 461,327.80, 691,991.70 and 368,015.80 is: 552,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,327.80 : 691,991.70 = 368,015.80 : x
  2. Step 2: Convert to fraction form
    461,327.80/691,991.70 = 368,015.80/x
  3. Step 3: Cross multiply
    461,327.80x = 691,991.70 × 368,015.80
  4. Step 4: Simplify right side
    461,327.80x = 254,663,879,068.86
  5. Step 5: Solve for x
    x = 254,663,879,068.86/461,327.80
  6. Step 6: Final answer
    x = 552,023.70

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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.