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Finding the Fourth Proportional to 448,573.20, 619,044.84 and 257,624.88

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Solution

The fourth proportional to 448,573.20, 619,044.84 and 257,624.88 is: 355,530.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,573.20 : 619,044.84 = 257,624.88 : x
  2. Step 2: Convert to fraction form
    448,573.20/619,044.84 = 257,624.88/x
  3. Step 3: Cross multiply
    448,573.20x = 619,044.84 × 257,624.88
  4. Step 4: Simplify right side
    448,573.20x = 159,481,352,619.62
  5. Step 5: Solve for x
    x = 159,481,352,619.62/448,573.20
  6. Step 6: Final answer
    x = 355,530.27

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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.