Home / 526,584.80-789,877.20-394,392.80

Finding the Fourth Proportional to 526,584.80, 789,877.20 and 394,392.80

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Solution

The fourth proportional to 526,584.80, 789,877.20 and 394,392.80 is: 591,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,584.80 : 789,877.20 = 394,392.80 : x
  2. Step 2: Convert to fraction form
    526,584.80/789,877.20 = 394,392.80/x
  3. Step 3: Cross multiply
    526,584.80x = 789,877.20 × 394,392.80
  4. Step 4: Simplify right side
    526,584.80x = 311,521,880,564.16
  5. Step 5: Solve for x
    x = 311,521,880,564.16/526,584.80
  6. Step 6: Final answer
    x = 591,589.20

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