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Finding the Fourth Proportional to 401,481.04, 552,653.24 and 347,008.40

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Solution

The fourth proportional to 401,481.04, 552,653.24 and 347,008.40 is: 477,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,481.04 : 552,653.24 = 347,008.40 : x
  2. Step 2: Convert to fraction form
    401,481.04/552,653.24 = 347,008.40/x
  3. Step 3: Cross multiply
    401,481.04x = 552,653.24 × 347,008.40
  4. Step 4: Simplify right side
    401,481.04x = 191,775,316,567.22
  5. Step 5: Solve for x
    x = 191,775,316,567.22/401,481.04
  6. Step 6: Final answer
    x = 477,669.67

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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.