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Finding the Fourth Proportional to 664,414.94, 916,879.83 and 362,611.10

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Solution

The fourth proportional to 664,414.94, 916,879.83 and 362,611.10 is: 500,396.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,414.94 : 916,879.83 = 362,611.10 : x
  2. Step 2: Convert to fraction form
    664,414.94/916,879.83 = 362,611.10/x
  3. Step 3: Cross multiply
    664,414.94x = 916,879.83 × 362,611.10
  4. Step 4: Simplify right side
    664,414.94x = 332,470,803,724.11
  5. Step 5: Solve for x
    x = 332,470,803,724.11/664,414.94
  6. Step 6: Final answer
    x = 500,396.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.