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Finding the Fourth Proportional to 405,964.10, 569,593.90 and 405,964.10

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Solution

The fourth proportional to 405,964.10, 569,593.90 and 405,964.10 is: 569,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,964.10 : 569,593.90 = 405,964.10 : x
  2. Step 2: Convert to fraction form
    405,964.10/569,593.90 = 405,964.10/x
  3. Step 3: Cross multiply
    405,964.10x = 569,593.90 × 405,964.10
  4. Step 4: Simplify right side
    405,964.10x = 231,234,674,978.99
  5. Step 5: Solve for x
    x = 231,234,674,978.99/405,964.10
  6. Step 6: Final answer
    x = 569,593.90

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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.