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Finding the Fourth Proportional to 377,528.96, 520,991.69 and 216,393.43

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Solution

The fourth proportional to 377,528.96, 520,991.69 and 216,393.43 is: 298,623.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,528.96 : 520,991.69 = 216,393.43 : x
  2. Step 2: Convert to fraction form
    377,528.96/520,991.69 = 216,393.43/x
  3. Step 3: Cross multiply
    377,528.96x = 520,991.69 × 216,393.43
  4. Step 4: Simplify right side
    377,528.96x = 112,739,178,800.60
  5. Step 5: Solve for x
    x = 112,739,178,800.60/377,528.96
  6. Step 6: Final answer
    x = 298,623.92

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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.