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Finding the Fourth Proportional to 330,858.80, 496,288.20 and 294,117.20

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Solution

The fourth proportional to 330,858.80, 496,288.20 and 294,117.20 is: 441,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,858.80 : 496,288.20 = 294,117.20 : x
  2. Step 2: Convert to fraction form
    330,858.80/496,288.20 = 294,117.20/x
  3. Step 3: Cross multiply
    330,858.80x = 496,288.20 × 294,117.20
  4. Step 4: Simplify right side
    330,858.80x = 145,966,895,777.04
  5. Step 5: Solve for x
    x = 145,966,895,777.04/330,858.80
  6. Step 6: Final answer
    x = 441,175.80

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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.