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Finding the Fourth Proportional to 264,353.64, 396,571.77 and 86,820.18

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Solution

The fourth proportional to 264,353.64, 396,571.77 and 86,820.18 is: 130,243.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,353.64 : 396,571.77 = 86,820.18 : x
  2. Step 2: Convert to fraction form
    264,353.64/396,571.77 = 86,820.18/x
  3. Step 3: Cross multiply
    264,353.64x = 396,571.77 × 86,820.18
  4. Step 4: Simplify right side
    264,353.64x = 34,430,432,454.32
  5. Step 5: Solve for x
    x = 34,430,432,454.32/264,353.64
  6. Step 6: Final answer
    x = 130,243.84

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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.