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Finding the Fourth Proportional to 355,734.60, 533,977.47 and 347,702.64

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Solution

The fourth proportional to 355,734.60, 533,977.47 and 347,702.64 is: 521,921.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,734.60 : 533,977.47 = 347,702.64 : x
  2. Step 2: Convert to fraction form
    355,734.60/533,977.47 = 347,702.64/x
  3. Step 3: Cross multiply
    355,734.60x = 533,977.47 × 347,702.64
  4. Step 4: Simplify right side
    355,734.60x = 185,665,376,019.52
  5. Step 5: Solve for x
    x = 185,665,376,019.52/355,734.60
  6. Step 6: Final answer
    x = 521,921.05

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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.