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Finding the Fourth Proportional to 453,915.20, 680,872.80 and 404,148.80

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Solution

The fourth proportional to 453,915.20, 680,872.80 and 404,148.80 is: 606,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,915.20 : 680,872.80 = 404,148.80 : x
  2. Step 2: Convert to fraction form
    453,915.20/680,872.80 = 404,148.80/x
  3. Step 3: Cross multiply
    453,915.20x = 680,872.80 × 404,148.80
  4. Step 4: Simplify right side
    453,915.20x = 275,173,925,072.64
  5. Step 5: Solve for x
    x = 275,173,925,072.64/453,915.20
  6. Step 6: Final answer
    x = 606,223.20

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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.