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Finding the Fourth Proportional to 449,577.63, 671,086.71 and 392,825.97

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Solution

The fourth proportional to 449,577.63, 671,086.71 and 392,825.97 is: 586,373.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,577.63 : 671,086.71 = 392,825.97 : x
  2. Step 2: Convert to fraction form
    449,577.63/671,086.71 = 392,825.97/x
  3. Step 3: Cross multiply
    449,577.63x = 671,086.71 × 392,825.97
  4. Step 4: Simplify right side
    449,577.63x = 263,620,287,809.86
  5. Step 5: Solve for x
    x = 263,620,287,809.86/449,577.63
  6. Step 6: Final answer
    x = 586,373.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.