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Finding the Fourth Proportional to 464,888.97, 640,818.95 and 303,663.33

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Solution

The fourth proportional to 464,888.97, 640,818.95 and 303,663.33 is: 418,579.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,888.97 : 640,818.95 = 303,663.33 : x
  2. Step 2: Convert to fraction form
    464,888.97/640,818.95 = 303,663.33/x
  3. Step 3: Cross multiply
    464,888.97x = 640,818.95 × 303,663.33
  4. Step 4: Simplify right side
    464,888.97x = 194,593,214,765.79
  5. Step 5: Solve for x
    x = 194,593,214,765.79/464,888.97
  6. Step 6: Final answer
    x = 418,579.98

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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.