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Finding the Fourth Proportional to 233,628.40, 350,831.40 and 128,522.80

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Solution

The fourth proportional to 233,628.40, 350,831.40 and 128,522.80 is: 192,998.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,628.40 : 350,831.40 = 128,522.80 : x
  2. Step 2: Convert to fraction form
    233,628.40/350,831.40 = 128,522.80/x
  3. Step 3: Cross multiply
    233,628.40x = 350,831.40 × 128,522.80
  4. Step 4: Simplify right side
    233,628.40x = 45,089,833,855.92
  5. Step 5: Solve for x
    x = 45,089,833,855.92/233,628.40
  6. Step 6: Final answer
    x = 192,998.09

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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.