Home / 993,812.40-1,489,989.60-394,477.20

Finding the Fourth Proportional to 993,812.40, 1,489,989.60 and 394,477.20

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Solution

The fourth proportional to 993,812.40, 1,489,989.60 and 394,477.20 is: 591,426.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,812.40 : 1,489,989.60 = 394,477.20 : x
  2. Step 2: Convert to fraction form
    993,812.40/1,489,989.60 = 394,477.20/x
  3. Step 3: Cross multiply
    993,812.40x = 1,489,989.60 × 394,477.20
  4. Step 4: Simplify right side
    993,812.40x = 587,766,925,437.12
  5. Step 5: Solve for x
    x = 587,766,925,437.12/993,812.40
  6. Step 6: Final answer
    x = 591,426.44

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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.