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Finding the Fourth Proportional to 529,523.60, 730,749.95 and 287,806.10

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Solution

The fourth proportional to 529,523.60, 730,749.95 and 287,806.10 is: 397,176.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,523.60 : 730,749.95 = 287,806.10 : x
  2. Step 2: Convert to fraction form
    529,523.60/730,749.95 = 287,806.10/x
  3. Step 3: Cross multiply
    529,523.60x = 730,749.95 × 287,806.10
  4. Step 4: Simplify right side
    529,523.60x = 210,314,288,091.92
  5. Step 5: Solve for x
    x = 210,314,288,091.92/529,523.60
  6. Step 6: Final answer
    x = 397,176.42

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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.