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Finding the Fourth Proportional to 331,282.80, 496,486.80 and 293,666.40

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Solution

The fourth proportional to 331,282.80, 496,486.80 and 293,666.40 is: 440,111.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,282.80 : 496,486.80 = 293,666.40 : x
  2. Step 2: Convert to fraction form
    331,282.80/496,486.80 = 293,666.40/x
  3. Step 3: Cross multiply
    331,282.80x = 496,486.80 × 293,666.40
  4. Step 4: Simplify right side
    331,282.80x = 145,801,491,203.52
  5. Step 5: Solve for x
    x = 145,801,491,203.52/331,282.80
  6. Step 6: Final answer
    x = 440,111.87

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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.