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Finding the Fourth Proportional to 382,055.80, 573,695.70 and 303,820.60

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Solution

The fourth proportional to 382,055.80, 573,695.70 and 303,820.60 is: 456,217.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,055.80 : 573,695.70 = 303,820.60 : x
  2. Step 2: Convert to fraction form
    382,055.80/573,695.70 = 303,820.60/x
  3. Step 3: Cross multiply
    382,055.80x = 573,695.70 × 303,820.60
  4. Step 4: Simplify right side
    382,055.80x = 174,300,571,791.42
  5. Step 5: Solve for x
    x = 174,300,571,791.42/382,055.80
  6. Step 6: Final answer
    x = 456,217.58

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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.