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Finding the Fourth Proportional to 264,148.40, 395,639.40 and 217,492.40

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Solution

The fourth proportional to 264,148.40, 395,639.40 and 217,492.40 is: 325,758.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,148.40 : 395,639.40 = 217,492.40 : x
  2. Step 2: Convert to fraction form
    264,148.40/395,639.40 = 217,492.40/x
  3. Step 3: Cross multiply
    264,148.40x = 395,639.40 × 217,492.40
  4. Step 4: Simplify right side
    264,148.40x = 86,048,562,640.56
  5. Step 5: Solve for x
    x = 86,048,562,640.56/264,148.40
  6. Step 6: Final answer
    x = 325,758.41

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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.