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Finding the Fourth Proportional to 483,409.32, 725,128.28 and 230,716.40

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Solution

The fourth proportional to 483,409.32, 725,128.28 and 230,716.40 is: 346,081.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,409.32 : 725,128.28 = 230,716.40 : x
  2. Step 2: Convert to fraction form
    483,409.32/725,128.28 = 230,716.40/x
  3. Step 3: Cross multiply
    483,409.32x = 725,128.28 × 230,716.40
  4. Step 4: Simplify right side
    483,409.32x = 167,298,986,299.79
  5. Step 5: Solve for x
    x = 167,298,986,299.79/483,409.32
  6. Step 6: Final answer
    x = 346,081.42

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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.