Home / 330,011.30-455,422.84-186,771.44

Finding the Fourth Proportional to 330,011.30, 455,422.84 and 186,771.44

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Solution

The fourth proportional to 330,011.30, 455,422.84 and 186,771.44 is: 257,748.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,011.30 : 455,422.84 = 186,771.44 : x
  2. Step 2: Convert to fraction form
    330,011.30/455,422.84 = 186,771.44/x
  3. Step 3: Cross multiply
    330,011.30x = 455,422.84 × 186,771.44
  4. Step 4: Simplify right side
    330,011.30x = 85,059,979,635.69
  5. Step 5: Solve for x
    x = 85,059,979,635.69/330,011.30
  6. Step 6: Final answer
    x = 257,748.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.