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Finding the Fourth Proportional to 557,546.37, 769,340.37 and 353,236.83

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Solution

The fourth proportional to 557,546.37, 769,340.37 and 353,236.83 is: 487,420.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,546.37 : 769,340.37 = 353,236.83 : x
  2. Step 2: Convert to fraction form
    557,546.37/769,340.37 = 353,236.83/x
  3. Step 3: Cross multiply
    557,546.37x = 769,340.37 × 353,236.83
  4. Step 4: Simplify right side
    557,546.37x = 271,759,353,489.83
  5. Step 5: Solve for x
    x = 271,759,353,489.83/557,546.37
  6. Step 6: Final answer
    x = 487,420.18

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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.