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Finding the Fourth Proportional to 363,790.80, 545,945.40 and 153,579.60

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Solution

The fourth proportional to 363,790.80, 545,945.40 and 153,579.60 is: 230,478.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,790.80 : 545,945.40 = 153,579.60 : x
  2. Step 2: Convert to fraction form
    363,790.80/545,945.40 = 153,579.60/x
  3. Step 3: Cross multiply
    363,790.80x = 545,945.40 × 153,579.60
  4. Step 4: Simplify right side
    363,790.80x = 83,846,076,153.84
  5. Step 5: Solve for x
    x = 83,846,076,153.84/363,790.80
  6. Step 6: Final answer
    x = 230,478.83

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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.