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Finding the Fourth Proportional to 448,051.90, 672,077.85 and 199,219.90

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Solution

The fourth proportional to 448,051.90, 672,077.85 and 199,219.90 is: 298,829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,051.90 : 672,077.85 = 199,219.90 : x
  2. Step 2: Convert to fraction form
    448,051.90/672,077.85 = 199,219.90/x
  3. Step 3: Cross multiply
    448,051.90x = 672,077.85 × 199,219.90
  4. Step 4: Simplify right side
    448,051.90x = 133,891,282,069.22
  5. Step 5: Solve for x
    x = 133,891,282,069.22/448,051.90
  6. Step 6: Final answer
    x = 298,829.85

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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.