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Finding the Fourth Proportional to 606,609.20, 909,827.40 and 207,268.40

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Solution

The fourth proportional to 606,609.20, 909,827.40 and 207,268.40 is: 310,873.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,609.20 : 909,827.40 = 207,268.40 : x
  2. Step 2: Convert to fraction form
    606,609.20/909,827.40 = 207,268.40/x
  3. Step 3: Cross multiply
    606,609.20x = 909,827.40 × 207,268.40
  4. Step 4: Simplify right side
    606,609.20x = 188,578,469,474.16
  5. Step 5: Solve for x
    x = 188,578,469,474.16/606,609.20
  6. Step 6: Final answer
    x = 310,873.08

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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.