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Finding the Fourth Proportional to 455,064.01, 628,113.25 and 264,138.91

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Solution

The fourth proportional to 455,064.01, 628,113.25 and 264,138.91 is: 364,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,064.01 : 628,113.25 = 264,138.91 : x
  2. Step 2: Convert to fraction form
    455,064.01/628,113.25 = 264,138.91/x
  3. Step 3: Cross multiply
    455,064.01x = 628,113.25 × 264,138.91
  4. Step 4: Simplify right side
    455,064.01x = 165,909,145,410.64
  5. Step 5: Solve for x
    x = 165,909,145,410.64/455,064.01
  6. Step 6: Final answer
    x = 364,584.20

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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.