Home / 928,460.40-1,392,690.60-263,612.40

Finding the Fourth Proportional to 928,460.40, 1,392,690.60 and 263,612.40

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Solution

The fourth proportional to 928,460.40, 1,392,690.60 and 263,612.40 is: 395,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,460.40 : 1,392,690.60 = 263,612.40 : x
  2. Step 2: Convert to fraction form
    928,460.40/1,392,690.60 = 263,612.40/x
  3. Step 3: Cross multiply
    928,460.40x = 1,392,690.60 × 263,612.40
  4. Step 4: Simplify right side
    928,460.40x = 367,130,511,523.44
  5. Step 5: Solve for x
    x = 367,130,511,523.44/928,460.40
  6. Step 6: Final answer
    x = 395,418.60

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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.