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Finding the Fourth Proportional to 529,093.08, 730,153.77 and 287,380.38

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Solution

The fourth proportional to 529,093.08, 730,153.77 and 287,380.38 is: 396,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,093.08 : 730,153.77 = 287,380.38 : x
  2. Step 2: Convert to fraction form
    529,093.08/730,153.77 = 287,380.38/x
  3. Step 3: Cross multiply
    529,093.08x = 730,153.77 × 287,380.38
  4. Step 4: Simplify right side
    529,093.08x = 209,831,867,881.03
  5. Step 5: Solve for x
    x = 209,831,867,881.03/529,093.08
  6. Step 6: Final answer
    x = 396,587.81

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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.