Home / 890,617.20-1,336,087.80-291,411.60

Finding the Fourth Proportional to 890,617.20, 1,336,087.80 and 291,411.60

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Solution

The fourth proportional to 890,617.20, 1,336,087.80 and 291,411.60 is: 437,170.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,617.20 : 1,336,087.80 = 291,411.60 : x
  2. Step 2: Convert to fraction form
    890,617.20/1,336,087.80 = 291,411.60/x
  3. Step 3: Cross multiply
    890,617.20x = 1,336,087.80 × 291,411.60
  4. Step 4: Simplify right side
    890,617.20x = 389,351,483,538.48
  5. Step 5: Solve for x
    x = 389,351,483,538.48/890,617.20
  6. Step 6: Final answer
    x = 437,170.41

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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.