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Finding the Fourth Proportional to 648,843.20, 973,264.80 and 333,915.20

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Solution

The fourth proportional to 648,843.20, 973,264.80 and 333,915.20 is: 500,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,843.20 : 973,264.80 = 333,915.20 : x
  2. Step 2: Convert to fraction form
    648,843.20/973,264.80 = 333,915.20/x
  3. Step 3: Cross multiply
    648,843.20x = 973,264.80 × 333,915.20
  4. Step 4: Simplify right side
    648,843.20x = 324,987,910,344.96
  5. Step 5: Solve for x
    x = 324,987,910,344.96/648,843.20
  6. Step 6: Final answer
    x = 500,872.80

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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.