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Finding the Fourth Proportional to 324,071.40, 486,107.10 and 294,522.60

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Solution

The fourth proportional to 324,071.40, 486,107.10 and 294,522.60 is: 441,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,071.40 : 486,107.10 = 294,522.60 : x
  2. Step 2: Convert to fraction form
    324,071.40/486,107.10 = 294,522.60/x
  3. Step 3: Cross multiply
    324,071.40x = 486,107.10 × 294,522.60
  4. Step 4: Simplify right side
    324,071.40x = 143,169,526,970.46
  5. Step 5: Solve for x
    x = 143,169,526,970.46/324,071.40
  6. Step 6: Final answer
    x = 441,783.90

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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.