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Finding the Fourth Proportional to 443,756.10, 665,634.15 and 443,756.10

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Solution

The fourth proportional to 443,756.10, 665,634.15 and 443,756.10 is: 665,634.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,756.10 : 665,634.15 = 443,756.10 : x
  2. Step 2: Convert to fraction form
    443,756.10/665,634.15 = 443,756.10/x
  3. Step 3: Cross multiply
    443,756.10x = 665,634.15 × 443,756.10
  4. Step 4: Simplify right side
    443,756.10x = 295,379,214,430.82
  5. Step 5: Solve for x
    x = 295,379,214,430.82/443,756.10
  6. Step 6: Final answer
    x = 665,634.15

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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.