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Finding the Fourth Proportional to 808,393.20, 1,212,589.80 and 595,816.80

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Solution

The fourth proportional to 808,393.20, 1,212,589.80 and 595,816.80 is: 893,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,393.20 : 1,212,589.80 = 595,816.80 : x
  2. Step 2: Convert to fraction form
    808,393.20/1,212,589.80 = 595,816.80/x
  3. Step 3: Cross multiply
    808,393.20x = 1,212,589.80 × 595,816.80
  4. Step 4: Simplify right side
    808,393.20x = 722,481,374,348.64
  5. Step 5: Solve for x
    x = 722,481,374,348.64/808,393.20
  6. Step 6: Final answer
    x = 893,725.20

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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.