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Finding the Fourth Proportional to 959,446, 1,324,152.12 and 557,038

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Solution

The fourth proportional to 959,446, 1,324,152.12 and 557,038 is: 768,780.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,446 : 1,324,152.12 = 557,038 : x
  2. Step 2: Convert to fraction form
    959,446/1,324,152.12 = 557,038/x
  3. Step 3: Cross multiply
    959,446x = 1,324,152.12 × 557,038
  4. Step 4: Simplify right side
    959,446x = 737,603,048,620.56
  5. Step 5: Solve for x
    x = 737,603,048,620.56/959,446
  6. Step 6: Final answer
    x = 768,780.16

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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.