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Finding the Fourth Proportional to 448,956.82, 619,666.46 and 258,080.95

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Solution

The fourth proportional to 448,956.82, 619,666.46 and 258,080.95 is: 356,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,956.82 : 619,666.46 = 258,080.95 : x
  2. Step 2: Convert to fraction form
    448,956.82/619,666.46 = 258,080.95/x
  3. Step 3: Cross multiply
    448,956.82x = 619,666.46 × 258,080.95
  4. Step 4: Simplify right side
    448,956.82x = 159,924,108,679.94
  5. Step 5: Solve for x
    x = 159,924,108,679.94/448,956.82
  6. Step 6: Final answer
    x = 356,212.67

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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.