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Finding the Fourth Proportional to 569,629.70, 853,697.10 and 419,165.45

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Solution

The fourth proportional to 569,629.70, 853,697.10 and 419,165.45 is: 628,198.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,629.70 : 853,697.10 = 419,165.45 : x
  2. Step 2: Convert to fraction form
    569,629.70/853,697.10 = 419,165.45/x
  3. Step 3: Cross multiply
    569,629.70x = 853,697.10 × 419,165.45
  4. Step 4: Simplify right side
    569,629.70x = 357,840,329,085.20
  5. Step 5: Solve for x
    x = 357,840,329,085.20/569,629.70
  6. Step 6: Final answer
    x = 628,198.16

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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.