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Finding the Fourth Proportional to 492,126.38, 679,134.34 and 265,771.88

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Solution

The fourth proportional to 492,126.38, 679,134.34 and 265,771.88 is: 366,765.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,126.38 : 679,134.34 = 265,771.88 : x
  2. Step 2: Convert to fraction form
    492,126.38/679,134.34 = 265,771.88/x
  3. Step 3: Cross multiply
    492,126.38x = 679,134.34 × 265,771.88
  4. Step 4: Simplify right side
    492,126.38x = 180,494,810,314.36
  5. Step 5: Solve for x
    x = 180,494,810,314.36/492,126.38
  6. Step 6: Final answer
    x = 366,765.16

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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.