Home / 294,016.08-405,857.58-208,422.45

Finding the Fourth Proportional to 294,016.08, 405,857.58 and 208,422.45

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Solution

The fourth proportional to 294,016.08, 405,857.58 and 208,422.45 is: 287,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,016.08 : 405,857.58 = 208,422.45 : x
  2. Step 2: Convert to fraction form
    294,016.08/405,857.58 = 208,422.45/x
  3. Step 3: Cross multiply
    294,016.08x = 405,857.58 × 208,422.45
  4. Step 4: Simplify right side
    294,016.08x = 84,589,831,174.67
  5. Step 5: Solve for x
    x = 84,589,831,174.67/294,016.08
  6. Step 6: Final answer
    x = 287,704.78

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1.5x scale

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.