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Finding the Fourth Proportional to 455,067.02, 628,117.40 and 264,141.92

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Solution

The fourth proportional to 455,067.02, 628,117.40 and 264,141.92 is: 364,588.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,067.02 : 628,117.40 = 264,141.92 : x
  2. Step 2: Convert to fraction form
    455,067.02/628,117.40 = 264,141.92/x
  3. Step 3: Cross multiply
    455,067.02x = 628,117.40 × 264,141.92
  4. Step 4: Simplify right side
    455,067.02x = 165,912,136,021.41
  5. Step 5: Solve for x
    x = 165,912,136,021.41/455,067.02
  6. Step 6: Final answer
    x = 364,588.35

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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.