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Finding the Fourth Proportional to 631,571.66, 871,569.10 and 341,183.32

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Solution

The fourth proportional to 631,571.66, 871,569.10 and 341,183.32 is: 470,833.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,571.66 : 871,569.10 = 341,183.32 : x
  2. Step 2: Convert to fraction form
    631,571.66/871,569.10 = 341,183.32/x
  3. Step 3: Cross multiply
    631,571.66x = 871,569.10 × 341,183.32
  4. Step 4: Simplify right side
    631,571.66x = 297,364,839,147.41
  5. Step 5: Solve for x
    x = 297,364,839,147.41/631,571.66
  6. Step 6: Final answer
    x = 470,833.09

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.