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Finding the Fourth Proportional to 448,865.50, 619,447.36 and 247,674.46

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Solution

The fourth proportional to 448,865.50, 619,447.36 and 247,674.46 is: 341,797.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,865.50 : 619,447.36 = 247,674.46 : x
  2. Step 2: Convert to fraction form
    448,865.50/619,447.36 = 247,674.46/x
  3. Step 3: Cross multiply
    448,865.50x = 619,447.36 × 247,674.46
  4. Step 4: Simplify right side
    448,865.50x = 153,421,290,386.43
  5. Step 5: Solve for x
    x = 153,421,290,386.43/448,865.50
  6. Step 6: Final answer
    x = 341,797.91

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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.