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Finding the Fourth Proportional to 480,676.26, 717,878.78 and 408,833.31

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Solution

The fourth proportional to 480,676.26, 717,878.78 and 408,833.31 is: 610,583.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,676.26 : 717,878.78 = 408,833.31 : x
  2. Step 2: Convert to fraction form
    480,676.26/717,878.78 = 408,833.31/x
  3. Step 3: Cross multiply
    480,676.26x = 717,878.78 × 408,833.31
  4. Step 4: Simplify right side
    480,676.26x = 293,492,757,806.16
  5. Step 5: Solve for x
    x = 293,492,757,806.16/480,676.26
  6. Step 6: Final answer
    x = 610,583.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.