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Finding the Fourth Proportional to 462,439.98, 638,185.77 and 268,846.74

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Solution

The fourth proportional to 462,439.98, 638,185.77 and 268,846.74 is: 371,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,439.98 : 638,185.77 = 268,846.74 : x
  2. Step 2: Convert to fraction form
    462,439.98/638,185.77 = 268,846.74/x
  3. Step 3: Cross multiply
    462,439.98x = 638,185.77 × 268,846.74
  4. Step 4: Simplify right side
    462,439.98x = 171,574,163,778.89
  5. Step 5: Solve for x
    x = 171,574,163,778.89/462,439.98
  6. Step 6: Final answer
    x = 371,019.31

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1.5x scale

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.