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Finding the Fourth Proportional to 508,239.97, 701,270.66 and 301,470.05

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Solution

The fourth proportional to 508,239.97, 701,270.66 and 301,470.05 is: 415,969.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,239.97 : 701,270.66 = 301,470.05 : x
  2. Step 2: Convert to fraction form
    508,239.97/701,270.66 = 301,470.05/x
  3. Step 3: Cross multiply
    508,239.97x = 701,270.66 × 301,470.05
  4. Step 4: Simplify right side
    508,239.97x = 211,412,103,440.59
  5. Step 5: Solve for x
    x = 211,412,103,440.59/508,239.97
  6. Step 6: Final answer
    x = 415,969.06

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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.