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Finding the Fourth Proportional to 620,751.40, 930,624.39 and 194,067.70

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Solution

The fourth proportional to 620,751.40, 930,624.39 and 194,067.70 is: 290,944.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,751.40 : 930,624.39 = 194,067.70 : x
  2. Step 2: Convert to fraction form
    620,751.40/930,624.39 = 194,067.70/x
  3. Step 3: Cross multiply
    620,751.40x = 930,624.39 × 194,067.70
  4. Step 4: Simplify right side
    620,751.40x = 180,604,132,604.64
  5. Step 5: Solve for x
    x = 180,604,132,604.64/620,751.40
  6. Step 6: Final answer
    x = 290,944.38

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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.