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Finding the Fourth Proportional to 492,987.11, 680,322.24 and 266,632.61

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Solution

The fourth proportional to 492,987.11, 680,322.24 and 266,632.61 is: 367,953.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,987.11 : 680,322.24 = 266,632.61 : x
  2. Step 2: Convert to fraction form
    492,987.11/680,322.24 = 266,632.61/x
  3. Step 3: Cross multiply
    492,987.11x = 680,322.24 × 266,632.61
  4. Step 4: Simplify right side
    492,987.11x = 181,396,091,090.64
  5. Step 5: Solve for x
    x = 181,396,091,090.64/492,987.11
  6. Step 6: Final answer
    x = 367,953.01

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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.