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Finding the Fourth Proportional to 622,825.11, 859,498.64 and 336,345.17

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Solution

The fourth proportional to 622,825.11, 859,498.64 and 336,345.17 is: 464,156.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,825.11 : 859,498.64 = 336,345.17 : x
  2. Step 2: Convert to fraction form
    622,825.11/859,498.64 = 336,345.17/x
  3. Step 3: Cross multiply
    622,825.11x = 859,498.64 × 336,345.17
  4. Step 4: Simplify right side
    622,825.11x = 289,088,212,728.94
  5. Step 5: Solve for x
    x = 289,088,212,728.94/622,825.11
  6. Step 6: Final answer
    x = 464,156.32

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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.