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Finding the Fourth Proportional to 625,406.33, 938,100.29 and 198,967.96

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Solution

The fourth proportional to 625,406.33, 938,100.29 and 198,967.96 is: 298,449.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,406.33 : 938,100.29 = 198,967.96 : x
  2. Step 2: Convert to fraction form
    625,406.33/938,100.29 = 198,967.96/x
  3. Step 3: Cross multiply
    625,406.33x = 938,100.29 × 198,967.96
  4. Step 4: Simplify right side
    625,406.33x = 186,651,901,154.49
  5. Step 5: Solve for x
    x = 186,651,901,154.49/625,406.33
  6. Step 6: Final answer
    x = 298,449.01

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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.