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Finding the Fourth Proportional to 492,777.22, 680,033.60 and 266,422.72

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Solution

The fourth proportional to 492,777.22, 680,033.60 and 266,422.72 is: 367,663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,777.22 : 680,033.60 = 266,422.72 : x
  2. Step 2: Convert to fraction form
    492,777.22/680,033.60 = 266,422.72/x
  3. Step 3: Cross multiply
    492,777.22x = 680,033.60 × 266,422.72
  4. Step 4: Simplify right side
    492,777.22x = 181,176,401,403.39
  5. Step 5: Solve for x
    x = 181,176,401,403.39/492,777.22
  6. Step 6: Final answer
    x = 367,663.91

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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.