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Finding the Fourth Proportional to 570,999.48, 855,564.83 and 345,676.97

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Solution

The fourth proportional to 570,999.48, 855,564.83 and 345,676.97 is: 517,949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,999.48 : 855,564.83 = 345,676.97 : x
  2. Step 2: Convert to fraction form
    570,999.48/855,564.83 = 345,676.97/x
  3. Step 3: Cross multiply
    570,999.48x = 855,564.83 × 345,676.97
  4. Step 4: Simplify right side
    570,999.48x = 295,749,056,911.66
  5. Step 5: Solve for x
    x = 295,749,056,911.66/570,999.48
  6. Step 6: Final answer
    x = 517,949.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.