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Finding the Fourth Proportional to 383,574.78, 529,521.03 and 297,343.26

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Solution

The fourth proportional to 383,574.78, 529,521.03 and 297,343.26 is: 410,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,574.78 : 529,521.03 = 297,343.26 : x
  2. Step 2: Convert to fraction form
    383,574.78/529,521.03 = 297,343.26/x
  3. Step 3: Cross multiply
    383,574.78x = 529,521.03 × 297,343.26
  4. Step 4: Simplify right side
    383,574.78x = 157,449,509,298.76
  5. Step 5: Solve for x
    x = 157,449,509,298.76/383,574.78
  6. Step 6: Final answer
    x = 410,479.31

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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.