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Finding the Fourth Proportional to 496,843.28, 685,639.40 and 270,488.24

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Solution

The fourth proportional to 496,843.28, 685,639.40 and 270,488.24 is: 373,271.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,843.28 : 685,639.40 = 270,488.24 : x
  2. Step 2: Convert to fraction form
    496,843.28/685,639.40 = 270,488.24/x
  3. Step 3: Cross multiply
    496,843.28x = 685,639.40 × 270,488.24
  4. Step 4: Simplify right side
    496,843.28x = 185,457,394,580.66
  5. Step 5: Solve for x
    x = 185,457,394,580.66/496,843.28
  6. Step 6: Final answer
    x = 373,271.42

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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.