Home / 890,873.76-1,336,533.64-259,787.64

Finding the Fourth Proportional to 890,873.76, 1,336,533.64 and 259,787.64

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Solution

The fourth proportional to 890,873.76, 1,336,533.64 and 259,787.64 is: 389,746.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,873.76 : 1,336,533.64 = 259,787.64 : x
  2. Step 2: Convert to fraction form
    890,873.76/1,336,533.64 = 259,787.64/x
  3. Step 3: Cross multiply
    890,873.76x = 1,336,533.64 × 259,787.64
  4. Step 4: Simplify right side
    890,873.76x = 347,214,920,116.21
  5. Step 5: Solve for x
    x = 347,214,920,116.21/890,873.76
  6. Step 6: Final answer
    x = 389,746.49

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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.