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Finding the Fourth Proportional to 386,262.66, 579,283.28 and 116,416.94

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Solution

The fourth proportional to 386,262.66, 579,283.28 and 116,416.94 is: 174,592.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,262.66 : 579,283.28 = 116,416.94 : x
  2. Step 2: Convert to fraction form
    386,262.66/579,283.28 = 116,416.94/x
  3. Step 3: Cross multiply
    386,262.66x = 579,283.28 × 116,416.94
  4. Step 4: Simplify right side
    386,262.66x = 67,438,383,372.26
  5. Step 5: Solve for x
    x = 67,438,383,372.26/386,262.66
  6. Step 6: Final answer
    x = 174,592.03

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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.