Home / 764,383.32-1,146,712.88-314,858.84

Finding the Fourth Proportional to 764,383.32, 1,146,712.88 and 314,858.84

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Solution

The fourth proportional to 764,383.32, 1,146,712.88 and 314,858.84 is: 472,345.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,383.32 : 1,146,712.88 = 314,858.84 : x
  2. Step 2: Convert to fraction form
    764,383.32/1,146,712.88 = 314,858.84/x
  3. Step 3: Cross multiply
    764,383.32x = 1,146,712.88 × 314,858.84
  4. Step 4: Simplify right side
    764,383.32x = 361,052,682,263.44
  5. Step 5: Solve for x
    x = 361,052,682,263.44/764,383.32
  6. Step 6: Final answer
    x = 472,345.06

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Double scale
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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.