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Finding the Fourth Proportional to 325,194.54, 487,385.16 and 156,683.22

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Solution

The fourth proportional to 325,194.54, 487,385.16 and 156,683.22 is: 234,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,194.54 : 487,385.16 = 156,683.22 : x
  2. Step 2: Convert to fraction form
    325,194.54/487,385.16 = 156,683.22/x
  3. Step 3: Cross multiply
    325,194.54x = 487,385.16 × 156,683.22
  4. Step 4: Simplify right side
    325,194.54x = 76,365,076,249.02
  5. Step 5: Solve for x
    x = 76,365,076,249.02/325,194.54
  6. Step 6: Final answer
    x = 234,828.90

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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.