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Finding the Third Proportional to 430,778.53 and 939,890.39

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Solution

The third proportional to 430,778.53 and 939,890.39 is: 2,050,691.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,778.53 : 939,890.39 = 939,890.39 : x
  2. Step 2: Convert to fraction form
    430,778.53/939,890.39 = 939,890.39/x
  3. Step 3: Cross multiply
    430,778.53x = 939,890.39 × 939,890.39
  4. Step 4: Simplify right side
    430,778.53x = 883,393,946,389.22
  5. Step 5: Solve for x
    x = 883,393,946,389.22/430,778.53
  6. Step 6: Final answer
    x = 2,050,691.67

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.