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Finding the Fourth Proportional to 356,399.49, 491,831.26 and 195,260.25

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Solution

The fourth proportional to 356,399.49, 491,831.26 and 195,260.25 is: 269,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,399.49 : 491,831.26 = 195,260.25 : x
  2. Step 2: Convert to fraction form
    356,399.49/491,831.26 = 195,260.25/x
  3. Step 3: Cross multiply
    356,399.49x = 491,831.26 × 195,260.25
  4. Step 4: Simplify right side
    356,399.49x = 96,035,094,785.42
  5. Step 5: Solve for x
    x = 96,035,094,785.42/356,399.49
  6. Step 6: Final answer
    x = 269,459.13

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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.