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Finding the Fourth Proportional to 464,610.22, 640,483.44 and 328,403.86

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Solution

The fourth proportional to 464,610.22, 640,483.44 and 328,403.86 is: 452,717.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,610.22 : 640,483.44 = 328,403.86 : x
  2. Step 2: Convert to fraction form
    464,610.22/640,483.44 = 328,403.86/x
  3. Step 3: Cross multiply
    464,610.22x = 640,483.44 × 328,403.86
  4. Step 4: Simplify right side
    464,610.22x = 210,337,233,962.08
  5. Step 5: Solve for x
    x = 210,337,233,962.08/464,610.22
  6. Step 6: Final answer
    x = 452,717.62

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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.