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Finding the Fourth Proportional to 606,429.70, 908,915.55 and 251,260.90

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Solution

The fourth proportional to 606,429.70, 908,915.55 and 251,260.90 is: 376,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,429.70 : 908,915.55 = 251,260.90 : x
  2. Step 2: Convert to fraction form
    606,429.70/908,915.55 = 251,260.90/x
  3. Step 3: Cross multiply
    606,429.70x = 908,915.55 × 251,260.90
  4. Step 4: Simplify right side
    606,429.70x = 228,374,939,117.00
  5. Step 5: Solve for x
    x = 228,374,939,117.00/606,429.70
  6. Step 6: Final answer
    x = 376,589.30

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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.