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Finding the Fourth Proportional to 443,328.90, 622,235.10 and 443,328.90

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Solution

The fourth proportional to 443,328.90, 622,235.10 and 443,328.90 is: 622,235.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,328.90 : 622,235.10 = 443,328.90 : x
  2. Step 2: Convert to fraction form
    443,328.90/622,235.10 = 443,328.90/x
  3. Step 3: Cross multiply
    443,328.90x = 622,235.10 × 443,328.90
  4. Step 4: Simplify right side
    443,328.90x = 275,854,802,424.39
  5. Step 5: Solve for x
    x = 275,854,802,424.39/443,328.90
  6. Step 6: Final answer
    x = 622,235.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.