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Finding the Fourth Proportional to 492,058.15, 738,087.23 and 448,512.55

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Solution

The fourth proportional to 492,058.15, 738,087.23 and 448,512.55 is: 672,768.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,058.15 : 738,087.23 = 448,512.55 : x
  2. Step 2: Convert to fraction form
    492,058.15/738,087.23 = 448,512.55/x
  3. Step 3: Cross multiply
    492,058.15x = 738,087.23 × 448,512.55
  4. Step 4: Simplify right side
    492,058.15x = 331,041,385,649.74
  5. Step 5: Solve for x
    x = 331,041,385,649.74/492,058.15
  6. Step 6: Final answer
    x = 672,768.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.