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Finding the Fourth Proportional to 556,103.64, 834,199.20 and 219,120.96

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Solution

The fourth proportional to 556,103.64, 834,199.20 and 219,120.96 is: 328,698.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,103.64 : 834,199.20 = 219,120.96 : x
  2. Step 2: Convert to fraction form
    556,103.64/834,199.20 = 219,120.96/x
  3. Step 3: Cross multiply
    556,103.64x = 834,199.20 × 219,120.96
  4. Step 4: Simplify right side
    556,103.64x = 182,790,529,535.23
  5. Step 5: Solve for x
    x = 182,790,529,535.23/556,103.64
  6. Step 6: Final answer
    x = 328,698.67

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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.