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Finding the Fourth Proportional to 448,684.50, 619,162.74 and 267,392.28

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Solution

The fourth proportional to 448,684.50, 619,162.74 and 267,392.28 is: 368,988.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,684.50 : 619,162.74 = 267,392.28 : x
  2. Step 2: Convert to fraction form
    448,684.50/619,162.74 = 267,392.28/x
  3. Step 3: Cross multiply
    448,684.50x = 619,162.74 × 267,392.28
  4. Step 4: Simplify right side
    448,684.50x = 165,559,336,739.65
  5. Step 5: Solve for x
    x = 165,559,336,739.65/448,684.50
  6. Step 6: Final answer
    x = 368,988.31

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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.