Home / 828,939.40-1,243,409.10-296,477.80

Finding the Fourth Proportional to 828,939.40, 1,243,409.10 and 296,477.80

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Solution

The fourth proportional to 828,939.40, 1,243,409.10 and 296,477.80 is: 444,716.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,939.40 : 1,243,409.10 = 296,477.80 : x
  2. Step 2: Convert to fraction form
    828,939.40/1,243,409.10 = 296,477.80/x
  3. Step 3: Cross multiply
    828,939.40x = 1,243,409.10 × 296,477.80
  4. Step 4: Simplify right side
    828,939.40x = 368,643,194,467.98
  5. Step 5: Solve for x
    x = 368,643,194,467.98/828,939.40
  6. Step 6: Final answer
    x = 444,716.70

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Double scale
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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.