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Finding the Fourth Proportional to 363,996.10, 545,994.15 and 331,336.90

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Solution

The fourth proportional to 363,996.10, 545,994.15 and 331,336.90 is: 497,005.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,996.10 : 545,994.15 = 331,336.90 : x
  2. Step 2: Convert to fraction form
    363,996.10/545,994.15 = 331,336.90/x
  3. Step 3: Cross multiply
    363,996.10x = 545,994.15 × 331,336.90
  4. Step 4: Simplify right side
    363,996.10x = 180,908,009,079.14
  5. Step 5: Solve for x
    x = 180,908,009,079.14/363,996.10
  6. Step 6: Final answer
    x = 497,005.35

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Similar ratio
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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.