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Finding the Fourth Proportional to 625,624.94, 938,568.63 and 270,689.42

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Solution

The fourth proportional to 625,624.94, 938,568.63 and 270,689.42 is: 406,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,624.94 : 938,568.63 = 270,689.42 : x
  2. Step 2: Convert to fraction form
    625,624.94/938,568.63 = 270,689.42/x
  3. Step 3: Cross multiply
    625,624.94x = 938,568.63 × 270,689.42
  4. Step 4: Simplify right side
    625,624.94x = 254,060,593,392.05
  5. Step 5: Solve for x
    x = 254,060,593,392.05/625,624.94
  6. Step 6: Final answer
    x = 406,090.90

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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.