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Finding the Third Proportional to 358,960.50 and 555,748.50

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Solution

The third proportional to 358,960.50 and 555,748.50 is: 860,418.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,960.50 : 555,748.50 = 555,748.50 : x
  2. Step 2: Convert to fraction form
    358,960.50/555,748.50 = 555,748.50/x
  3. Step 3: Cross multiply
    358,960.50x = 555,748.50 × 555,748.50
  4. Step 4: Simplify right side
    358,960.50x = 308,856,395,252.25
  5. Step 5: Solve for x
    x = 308,856,395,252.25/358,960.50
  6. Step 6: Final answer
    x = 860,418.89

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.