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Finding the Fourth Proportional to 317,090.52, 437,584.38 and 173,855.64

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Solution

The fourth proportional to 317,090.52, 437,584.38 and 173,855.64 is: 239,920.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,090.52 : 437,584.38 = 173,855.64 : x
  2. Step 2: Convert to fraction form
    317,090.52/437,584.38 = 173,855.64/x
  3. Step 3: Cross multiply
    317,090.52x = 437,584.38 × 173,855.64
  4. Step 4: Simplify right side
    317,090.52x = 76,076,512,438.90
  5. Step 5: Solve for x
    x = 76,076,512,438.90/317,090.52
  6. Step 6: Final answer
    x = 239,920.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.