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Finding the Fourth Proportional to 451,633.45, 677,712.60 and 202,315.45

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Solution

The fourth proportional to 451,633.45, 677,712.60 and 202,315.45 is: 303,590.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,633.45 : 677,712.60 = 202,315.45 : x
  2. Step 2: Convert to fraction form
    451,633.45/677,712.60 = 202,315.45/x
  3. Step 3: Cross multiply
    451,633.45x = 677,712.60 × 202,315.45
  4. Step 4: Simplify right side
    451,633.45x = 137,111,726,251.11
  5. Step 5: Solve for x
    x = 137,111,726,251.11/451,633.45
  6. Step 6: Final answer
    x = 303,590.73

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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.