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Finding the Fourth Proportional to 351,340.72, 484,852.80 and 196,292.32

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Solution

The fourth proportional to 351,340.72, 484,852.80 and 196,292.32 is: 270,884.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,340.72 : 484,852.80 = 196,292.32 : x
  2. Step 2: Convert to fraction form
    351,340.72/484,852.80 = 196,292.32/x
  3. Step 3: Cross multiply
    351,340.72x = 484,852.80 × 196,292.32
  4. Step 4: Simplify right side
    351,340.72x = 95,172,880,970.50
  5. Step 5: Solve for x
    x = 95,172,880,970.50/351,340.72
  6. Step 6: Final answer
    x = 270,884.86

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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.