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Finding the Fourth Proportional to 403,671.42, 605,507.98 and 379,009.24

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Solution

The fourth proportional to 403,671.42, 605,507.98 and 379,009.24 is: 568,514.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,671.42 : 605,507.98 = 379,009.24 : x
  2. Step 2: Convert to fraction form
    403,671.42/605,507.98 = 379,009.24/x
  3. Step 3: Cross multiply
    403,671.42x = 605,507.98 × 379,009.24
  4. Step 4: Simplify right side
    403,671.42x = 229,493,116,852.44
  5. Step 5: Solve for x
    x = 229,493,116,852.44/403,671.42
  6. Step 6: Final answer
    x = 568,514.65

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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.