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Finding the Fourth Proportional to 689,034.60, 950,918.40 and 383,166

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Solution

The fourth proportional to 689,034.60, 950,918.40 and 383,166 is: 528,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,034.60 : 950,918.40 = 383,166 : x
  2. Step 2: Convert to fraction form
    689,034.60/950,918.40 = 383,166/x
  3. Step 3: Cross multiply
    689,034.60x = 950,918.40 × 383,166
  4. Step 4: Simplify right side
    689,034.60x = 364,359,599,654.40
  5. Step 5: Solve for x
    x = 364,359,599,654.40/689,034.60
  6. Step 6: Final answer
    x = 528,797.25

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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.