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Finding the Fourth Proportional to 492,234.77, 679,284 and 265,880.27

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Solution

The fourth proportional to 492,234.77, 679,284 and 265,880.27 is: 366,914.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,234.77 : 679,284 = 265,880.27 : x
  2. Step 2: Convert to fraction form
    492,234.77/679,284 = 265,880.27/x
  3. Step 3: Cross multiply
    492,234.77x = 679,284 × 265,880.27
  4. Step 4: Simplify right side
    492,234.77x = 180,608,209,930.26
  5. Step 5: Solve for x
    x = 180,608,209,930.26/492,234.77
  6. Step 6: Final answer
    x = 366,914.78

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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.