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Finding the Fourth Proportional to 496,461.44, 685,123.80 and 270,107.12

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Solution

The fourth proportional to 496,461.44, 685,123.80 and 270,107.12 is: 372,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,461.44 : 685,123.80 = 270,107.12 : x
  2. Step 2: Convert to fraction form
    496,461.44/685,123.80 = 270,107.12/x
  3. Step 3: Cross multiply
    496,461.44x = 685,123.80 × 270,107.12
  4. Step 4: Simplify right side
    496,461.44x = 185,056,816,461.46
  5. Step 5: Solve for x
    x = 185,056,816,461.46/496,461.44
  6. Step 6: Final answer
    x = 372,751.64

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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.