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Finding the Fourth Proportional to 346,440.80, 519,661.20 and 196,623.20

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Solution

The fourth proportional to 346,440.80, 519,661.20 and 196,623.20 is: 294,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,440.80 : 519,661.20 = 196,623.20 : x
  2. Step 2: Convert to fraction form
    346,440.80/519,661.20 = 196,623.20/x
  3. Step 3: Cross multiply
    346,440.80x = 519,661.20 × 196,623.20
  4. Step 4: Simplify right side
    346,440.80x = 102,177,448,059.84
  5. Step 5: Solve for x
    x = 102,177,448,059.84/346,440.80
  6. Step 6: Final answer
    x = 294,934.80

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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.