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Finding the Fourth Proportional to 319,027.22, 476,778.21 and 300,590.80

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Solution

The fourth proportional to 319,027.22, 476,778.21 and 300,590.80 is: 449,225.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,027.22 : 476,778.21 = 300,590.80 : x
  2. Step 2: Convert to fraction form
    319,027.22/476,778.21 = 300,590.80/x
  3. Step 3: Cross multiply
    319,027.22x = 476,778.21 × 300,590.80
  4. Step 4: Simplify right side
    319,027.22x = 143,315,143,566.47
  5. Step 5: Solve for x
    x = 143,315,143,566.47/319,027.22
  6. Step 6: Final answer
    x = 449,225.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.