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Finding the Fourth Proportional to 511,345.22, 705,680.44 and 284,992.34

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Solution

The fourth proportional to 511,345.22, 705,680.44 and 284,992.34 is: 393,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,345.22 : 705,680.44 = 284,992.34 : x
  2. Step 2: Convert to fraction form
    511,345.22/705,680.44 = 284,992.34/x
  3. Step 3: Cross multiply
    511,345.22x = 705,680.44 × 284,992.34
  4. Step 4: Simplify right side
    511,345.22x = 201,113,519,887.83
  5. Step 5: Solve for x
    x = 201,113,519,887.83/511,345.22
  6. Step 6: Final answer
    x = 393,302.83

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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.