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Finding the Fourth Proportional to 294,672.40, 440,842.20 and 255,662.80

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Solution

The fourth proportional to 294,672.40, 440,842.20 and 255,662.80 is: 382,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,672.40 : 440,842.20 = 255,662.80 : x
  2. Step 2: Convert to fraction form
    294,672.40/440,842.20 = 255,662.80/x
  3. Step 3: Cross multiply
    294,672.40x = 440,842.20 × 255,662.80
  4. Step 4: Simplify right side
    294,672.40x = 112,706,951,210.16
  5. Step 5: Solve for x
    x = 112,706,951,210.16/294,672.40
  6. Step 6: Final answer
    x = 382,482.21

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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.