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Finding the Fourth Proportional to 294,429.20, 441,643.80 and 154,230.80

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Solution

The fourth proportional to 294,429.20, 441,643.80 and 154,230.80 is: 231,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,429.20 : 441,643.80 = 154,230.80 : x
  2. Step 2: Convert to fraction form
    294,429.20/441,643.80 = 154,230.80/x
  3. Step 3: Cross multiply
    294,429.20x = 441,643.80 × 154,230.80
  4. Step 4: Simplify right side
    294,429.20x = 68,115,076,589.04
  5. Step 5: Solve for x
    x = 68,115,076,589.04/294,429.20
  6. Step 6: Final answer
    x = 231,346.20

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1.5x scale

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.