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Finding the Fourth Proportional to 570,865.71, 787,436.20 and 367,181.29

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Solution

The fourth proportional to 570,865.71, 787,436.20 and 367,181.29 is: 506,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,865.71 : 787,436.20 = 367,181.29 : x
  2. Step 2: Convert to fraction form
    570,865.71/787,436.20 = 367,181.29/x
  3. Step 3: Cross multiply
    570,865.71x = 787,436.20 × 367,181.29
  4. Step 4: Simplify right side
    570,865.71x = 289,131,839,708.70
  5. Step 5: Solve for x
    x = 289,131,839,708.70/570,865.71
  6. Step 6: Final answer
    x = 506,479.61

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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.