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Finding the Fourth Proportional to 545,695.22, 818,669.46 and 171,708.50

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Solution

The fourth proportional to 545,695.22, 818,669.46 and 171,708.50 is: 257,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,695.22 : 818,669.46 = 171,708.50 : x
  2. Step 2: Convert to fraction form
    545,695.22/818,669.46 = 171,708.50/x
  3. Step 3: Cross multiply
    545,695.22x = 818,669.46 × 171,708.50
  4. Step 4: Simplify right side
    545,695.22x = 140,572,504,972.41
  5. Step 5: Solve for x
    x = 140,572,504,972.41/545,695.22
  6. Step 6: Final answer
    x = 257,602.60

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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.