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Finding the Fourth Proportional to 591,995.76, 816,937.56 and 323,718

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Solution

The fourth proportional to 591,995.76, 816,937.56 and 323,718 is: 446,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,995.76 : 816,937.56 = 323,718 : x
  2. Step 2: Convert to fraction form
    591,995.76/816,937.56 = 323,718/x
  3. Step 3: Cross multiply
    591,995.76x = 816,937.56 × 323,718
  4. Step 4: Simplify right side
    591,995.76x = 264,457,393,048.08
  5. Step 5: Solve for x
    x = 264,457,393,048.08/591,995.76
  6. Step 6: Final answer
    x = 446,721.77

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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.