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Finding the Fourth Proportional to 590,804.50, 815,305.92 and 336,169.66

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Solution

The fourth proportional to 590,804.50, 815,305.92 and 336,169.66 is: 463,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,804.50 : 815,305.92 = 336,169.66 : x
  2. Step 2: Convert to fraction form
    590,804.50/815,305.92 = 336,169.66/x
  3. Step 3: Cross multiply
    590,804.50x = 815,305.92 × 336,169.66
  4. Step 4: Simplify right side
    590,804.50x = 274,081,113,922.39
  5. Step 5: Solve for x
    x = 274,081,113,922.39/590,804.50
  6. Step 6: Final answer
    x = 463,911.69

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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.