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Finding the Fourth Proportional to 529,558.37, 730,794.96 and 287,840.90

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Solution

The fourth proportional to 529,558.37, 730,794.96 and 287,840.90 is: 397,222.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,558.37 : 730,794.96 = 287,840.90 : x
  2. Step 2: Convert to fraction form
    529,558.37/730,794.96 = 287,840.90/x
  3. Step 3: Cross multiply
    529,558.37x = 730,794.96 × 287,840.90
  4. Step 4: Simplify right side
    529,558.37x = 210,352,680,828.85
  5. Step 5: Solve for x
    x = 210,352,680,828.85/529,558.37
  6. Step 6: Final answer
    x = 397,222.84

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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.