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Finding the Fourth Proportional to 455,432.46, 628,552.22 and 264,445.85

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Solution

The fourth proportional to 455,432.46, 628,552.22 and 264,445.85 is: 364,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,432.46 : 628,552.22 = 264,445.85 : x
  2. Step 2: Convert to fraction form
    455,432.46/628,552.22 = 264,445.85/x
  3. Step 3: Cross multiply
    455,432.46x = 628,552.22 × 264,445.85
  4. Step 4: Simplify right side
    455,432.46x = 166,218,021,622.30
  5. Step 5: Solve for x
    x = 166,218,021,622.30/455,432.46
  6. Step 6: Final answer
    x = 364,967.45

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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.