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Finding the Fourth Proportional to 439,246, 606,161.64 and 238,042

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Solution

The fourth proportional to 439,246, 606,161.64 and 238,042 is: 328,499.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,246 : 606,161.64 = 238,042 : x
  2. Step 2: Convert to fraction form
    439,246/606,161.64 = 238,042/x
  3. Step 3: Cross multiply
    439,246x = 606,161.64 × 238,042
  4. Step 4: Simplify right side
    439,246x = 144,291,929,108.88
  5. Step 5: Solve for x
    x = 144,291,929,108.88/439,246
  6. Step 6: Final answer
    x = 328,499.13

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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.