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Finding the Fourth Proportional to 622,825.44, 859,499.10 and 336,345.50

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Solution

The fourth proportional to 622,825.44, 859,499.10 and 336,345.50 is: 464,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,825.44 : 859,499.10 = 336,345.50 : x
  2. Step 2: Convert to fraction form
    622,825.44/859,499.10 = 336,345.50/x
  3. Step 3: Cross multiply
    622,825.44x = 859,499.10 × 336,345.50
  4. Step 4: Simplify right side
    622,825.44x = 289,088,650,241.56
  5. Step 5: Solve for x
    x = 289,088,650,241.56/622,825.44
  6. Step 6: Final answer
    x = 464,156.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.