Home / 677,685.84-1,015,173.36-407,665.14

Finding the Fourth Proportional to 677,685.84, 1,015,173.36 and 407,665.14

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Solution

The fourth proportional to 677,685.84, 1,015,173.36 and 407,665.14 is: 610,682.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,685.84 : 1,015,173.36 = 407,665.14 : x
  2. Step 2: Convert to fraction form
    677,685.84/1,015,173.36 = 407,665.14/x
  3. Step 3: Cross multiply
    677,685.84x = 1,015,173.36 × 407,665.14
  4. Step 4: Simplify right side
    677,685.84x = 413,850,789,928.67
  5. Step 5: Solve for x
    x = 413,850,789,928.67/677,685.84
  6. Step 6: Final answer
    x = 610,682.36

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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.