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Finding the Fourth Proportional to 455,033.48, 628,071.10 and 264,108.38

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Solution

The fourth proportional to 455,033.48, 628,071.10 and 264,108.38 is: 364,542.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,033.48 : 628,071.10 = 264,108.38 : x
  2. Step 2: Convert to fraction form
    455,033.48/628,071.10 = 264,108.38/x
  3. Step 3: Cross multiply
    455,033.48x = 628,071.10 × 264,108.38
  4. Step 4: Simplify right side
    455,033.48x = 165,878,836,945.19
  5. Step 5: Solve for x
    x = 165,878,836,945.19/455,033.48
  6. Step 6: Final answer
    x = 364,542.05

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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.