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Finding the Fourth Proportional to 264,010.40, 396,015.60 and 123,783.20

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Solution

The fourth proportional to 264,010.40, 396,015.60 and 123,783.20 is: 185,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,010.40 : 396,015.60 = 123,783.20 : x
  2. Step 2: Convert to fraction form
    264,010.40/396,015.60 = 123,783.20/x
  3. Step 3: Cross multiply
    264,010.40x = 396,015.60 × 123,783.20
  4. Step 4: Simplify right side
    264,010.40x = 49,020,078,217.92
  5. Step 5: Solve for x
    x = 49,020,078,217.92/264,010.40
  6. Step 6: Final answer
    x = 185,674.80

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1.5x scale

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.