Home / 828,137.40-1,242,206.10-295,675.80

Finding the Fourth Proportional to 828,137.40, 1,242,206.10 and 295,675.80

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Solution

The fourth proportional to 828,137.40, 1,242,206.10 and 295,675.80 is: 443,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,137.40 : 1,242,206.10 = 295,675.80 : x
  2. Step 2: Convert to fraction form
    828,137.40/1,242,206.10 = 295,675.80/x
  3. Step 3: Cross multiply
    828,137.40x = 1,242,206.10 × 295,675.80
  4. Step 4: Simplify right side
    828,137.40x = 367,290,282,382.38
  5. Step 5: Solve for x
    x = 367,290,282,382.38/828,137.40
  6. Step 6: Final answer
    x = 443,513.70

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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.