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Finding the Fourth Proportional to 403,291.12, 604,936.64 and 376,716.64

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Solution

The fourth proportional to 403,291.12, 604,936.64 and 376,716.64 is: 565,074.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,291.12 : 604,936.64 = 376,716.64 : x
  2. Step 2: Convert to fraction form
    403,291.12/604,936.64 = 376,716.64/x
  3. Step 3: Cross multiply
    403,291.12x = 604,936.64 × 376,716.64
  4. Step 4: Simplify right side
    403,291.12x = 227,889,698,433.69
  5. Step 5: Solve for x
    x = 227,889,698,433.69/403,291.12
  6. Step 6: Final answer
    x = 565,074.92

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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.