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Finding the Fourth Proportional to 646,051.41, 891,542.03 and 359,571.60

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Solution

The fourth proportional to 646,051.41, 891,542.03 and 359,571.60 is: 496,203.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,051.41 : 891,542.03 = 359,571.60 : x
  2. Step 2: Convert to fraction form
    646,051.41/891,542.03 = 359,571.60/x
  3. Step 3: Cross multiply
    646,051.41x = 891,542.03 × 359,571.60
  4. Step 4: Simplify right side
    646,051.41x = 320,573,192,396.49
  5. Step 5: Solve for x
    x = 320,573,192,396.49/646,051.41
  6. Step 6: Final answer
    x = 496,203.84

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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.