Home / 545,731.90-818,687.45-171,664.70

Finding the Fourth Proportional to 545,731.90, 818,687.45 and 171,664.70

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Solution

The fourth proportional to 545,731.90, 818,687.45 and 171,664.70 is: 257,525.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,731.90 : 818,687.45 = 171,664.70 : x
  2. Step 2: Convert to fraction form
    545,731.90/818,687.45 = 171,664.70/x
  3. Step 3: Cross multiply
    545,731.90x = 818,687.45 × 171,664.70
  4. Step 4: Simplify right side
    545,731.90x = 140,539,735,498.02
  5. Step 5: Solve for x
    x = 140,539,735,498.02/545,731.90
  6. Step 6: Final answer
    x = 257,525.23

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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.