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Finding the Fourth Proportional to 443,216.64, 663,765.36 and 255,659.52

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Solution

The fourth proportional to 443,216.64, 663,765.36 and 255,659.52 is: 382,878.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,216.64 : 663,765.36 = 255,659.52 : x
  2. Step 2: Convert to fraction form
    443,216.64/663,765.36 = 255,659.52/x
  3. Step 3: Cross multiply
    443,216.64x = 663,765.36 × 255,659.52
  4. Step 4: Simplify right side
    443,216.64x = 169,697,933,330.23
  5. Step 5: Solve for x
    x = 169,697,933,330.23/443,216.64
  6. Step 6: Final answer
    x = 382,878.07

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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.