Home / 828,128.60-1,242,191.01-259,553.03

Finding the Fourth Proportional to 828,128.60, 1,242,191.01 and 259,553.03

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Solution

The fourth proportional to 828,128.60, 1,242,191.01 and 259,553.03 is: 389,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,128.60 : 1,242,191.01 = 259,553.03 : x
  2. Step 2: Convert to fraction form
    828,128.60/1,242,191.01 = 259,553.03/x
  3. Step 3: Cross multiply
    828,128.60x = 1,242,191.01 × 259,553.03
  4. Step 4: Simplify right side
    828,128.60x = 322,414,437,280.31
  5. Step 5: Solve for x
    x = 322,414,437,280.31/828,128.60
  6. Step 6: Final answer
    x = 389,328.95

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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.