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Finding the Fourth Proportional to 464,172.67, 640,406.77 and 270,536.00

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Solution

The fourth proportional to 464,172.67, 640,406.77 and 270,536.00 is: 373,251.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,172.67 : 640,406.77 = 270,536.00 : x
  2. Step 2: Convert to fraction form
    464,172.67/640,406.77 = 270,536.00/x
  3. Step 3: Cross multiply
    464,172.67x = 640,406.77 × 270,536.00
  4. Step 4: Simplify right side
    464,172.67x = 173,253,081,374.01
  5. Step 5: Solve for x
    x = 173,253,081,374.01/464,172.67
  6. Step 6: Final answer
    x = 373,251.36

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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.