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Finding the Fourth Proportional to 382,720.50, 570,037.91 and 362,736.18

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Solution

The fourth proportional to 382,720.50, 570,037.91 and 362,736.18 is: 540,272.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,720.50 : 570,037.91 = 362,736.18 : x
  2. Step 2: Convert to fraction form
    382,720.50/570,037.91 = 362,736.18/x
  3. Step 3: Cross multiply
    382,720.50x = 570,037.91 × 362,736.18
  4. Step 4: Simplify right side
    382,720.50x = 206,773,372,114.90
  5. Step 5: Solve for x
    x = 206,773,372,114.90/382,720.50
  6. Step 6: Final answer
    x = 540,272.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.