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Finding the Fourth Proportional to 959,532, 1,324,270.80 and 557,124

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Solution

The fourth proportional to 959,532, 1,324,270.80 and 557,124 is: 768,898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,532 : 1,324,270.80 = 557,124 : x
  2. Step 2: Convert to fraction form
    959,532/1,324,270.80 = 557,124/x
  3. Step 3: Cross multiply
    959,532x = 1,324,270.80 × 557,124
  4. Step 4: Simplify right side
    959,532x = 737,783,045,179.20
  5. Step 5: Solve for x
    x = 737,783,045,179.20/959,532
  6. Step 6: Final answer
    x = 768,898.84

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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.