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Finding the Fourth Proportional to 545,411.25, 818,205.53 and 161,199.09

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Solution

The fourth proportional to 545,411.25, 818,205.53 and 161,199.09 is: 241,824.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,411.25 : 818,205.53 = 161,199.09 : x
  2. Step 2: Convert to fraction form
    545,411.25/818,205.53 = 161,199.09/x
  3. Step 3: Cross multiply
    545,411.25x = 818,205.53 × 161,199.09
  4. Step 4: Simplify right side
    545,411.25x = 131,893,986,062.97
  5. Step 5: Solve for x
    x = 131,893,986,062.97/545,411.25
  6. Step 6: Final answer
    x = 241,824.84

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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.