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Finding the Fourth Proportional to 496,385.84, 685,009.32 and 270,032.24

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Solution

The fourth proportional to 496,385.84, 685,009.32 and 270,032.24 is: 372,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,385.84 : 685,009.32 = 270,032.24 : x
  2. Step 2: Convert to fraction form
    496,385.84/685,009.32 = 270,032.24/x
  3. Step 3: Cross multiply
    496,385.84x = 685,009.32 × 270,032.24
  4. Step 4: Simplify right side
    496,385.84x = 184,974,601,100.48
  5. Step 5: Solve for x
    x = 184,974,601,100.48/496,385.84
  6. Step 6: Final answer
    x = 372,642.78

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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.