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Finding the Fourth Proportional to 250,428.28, 374,744.49 and 216,809.93

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Solution

The fourth proportional to 250,428.28, 374,744.49 and 216,809.93 is: 324,437.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,428.28 : 374,744.49 = 216,809.93 : x
  2. Step 2: Convert to fraction form
    250,428.28/374,744.49 = 216,809.93/x
  3. Step 3: Cross multiply
    250,428.28x = 374,744.49 × 216,809.93
  4. Step 4: Simplify right side
    250,428.28x = 81,248,325,584.10
  5. Step 5: Solve for x
    x = 81,248,325,584.10/250,428.28
  6. Step 6: Final answer
    x = 324,437.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.