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Finding the Fourth Proportional to 622,840.91, 859,520.42 and 336,360.97

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Solution

The fourth proportional to 622,840.91, 859,520.42 and 336,360.97 is: 464,178.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,840.91 : 859,520.42 = 336,360.97 : x
  2. Step 2: Convert to fraction form
    622,840.91/859,520.42 = 336,360.97/x
  3. Step 3: Cross multiply
    622,840.91x = 859,520.42 × 336,360.97
  4. Step 4: Simplify right side
    622,840.91x = 289,109,118,971.17
  5. Step 5: Solve for x
    x = 289,109,118,971.17/622,840.91
  6. Step 6: Final answer
    x = 464,178.12

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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.