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Finding the Fourth Proportional to 455,433.46, 628,553.60 and 264,446.85

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Solution

The fourth proportional to 455,433.46, 628,553.60 and 264,446.85 is: 364,968.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,433.46 : 628,553.60 = 264,446.85 : x
  2. Step 2: Convert to fraction form
    455,433.46/628,553.60 = 264,446.85/x
  3. Step 3: Cross multiply
    455,433.46x = 628,553.60 × 264,446.85
  4. Step 4: Simplify right side
    455,433.46x = 166,219,019,576.16
  5. Step 5: Solve for x
    x = 166,219,019,576.16/455,433.46
  6. Step 6: Final answer
    x = 364,968.84

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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.