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Finding the Fourth Proportional to 486,343.56, 671,065.63 and 341,591.63

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Solution

The fourth proportional to 486,343.56, 671,065.63 and 341,591.63 is: 471,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,343.56 : 671,065.63 = 341,591.63 : x
  2. Step 2: Convert to fraction form
    486,343.56/671,065.63 = 341,591.63/x
  3. Step 3: Cross multiply
    486,343.56x = 671,065.63 × 341,591.63
  4. Step 4: Simplify right side
    486,343.56x = 229,230,401,954.11
  5. Step 5: Solve for x
    x = 229,230,401,954.11/486,343.56
  6. Step 6: Final answer
    x = 471,334.30

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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.