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Finding the Fourth Proportional to 348,606.80, 522,910.20 and 124,220.60

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Solution

The fourth proportional to 348,606.80, 522,910.20 and 124,220.60 is: 186,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,606.80 : 522,910.20 = 124,220.60 : x
  2. Step 2: Convert to fraction form
    348,606.80/522,910.20 = 124,220.60/x
  3. Step 3: Cross multiply
    348,606.80x = 522,910.20 × 124,220.60
  4. Step 4: Simplify right side
    348,606.80x = 64,956,218,790.12
  5. Step 5: Solve for x
    x = 64,956,218,790.12/348,606.80
  6. Step 6: Final answer
    x = 186,330.90

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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.