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Finding the Fourth Proportional to 665,622.84, 918,559.98 and 363,816.84

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Solution

The fourth proportional to 665,622.84, 918,559.98 and 363,816.84 is: 502,067.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,622.84 : 918,559.98 = 363,816.84 : x
  2. Step 2: Convert to fraction form
    665,622.84/918,559.98 = 363,816.84/x
  3. Step 3: Cross multiply
    665,622.84x = 918,559.98 × 363,816.84
  4. Step 4: Simplify right side
    665,622.84x = 334,187,589,274.06
  5. Step 5: Solve for x
    x = 334,187,589,274.06/665,622.84
  6. Step 6: Final answer
    x = 502,067.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.