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Finding the Fourth Proportional to 560,385, 773,331.30 and 359,181

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Solution

The fourth proportional to 560,385, 773,331.30 and 359,181 is: 495,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,385 : 773,331.30 = 359,181 : x
  2. Step 2: Convert to fraction form
    560,385/773,331.30 = 359,181/x
  3. Step 3: Cross multiply
    560,385x = 773,331.30 × 359,181
  4. Step 4: Simplify right side
    560,385x = 277,765,909,665.30
  5. Step 5: Solve for x
    x = 277,765,909,665.30/560,385
  6. Step 6: Final answer
    x = 495,669.78

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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.