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Finding the Fourth Proportional to 554,676.96, 765,183.60 and 339,748.32

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Solution

The fourth proportional to 554,676.96, 765,183.60 and 339,748.32 is: 468,686.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,676.96 : 765,183.60 = 339,748.32 : x
  2. Step 2: Convert to fraction form
    554,676.96/765,183.60 = 339,748.32/x
  3. Step 3: Cross multiply
    554,676.96x = 765,183.60 × 339,748.32
  4. Step 4: Simplify right side
    554,676.96x = 259,969,842,591.55
  5. Step 5: Solve for x
    x = 259,969,842,591.55/554,676.96
  6. Step 6: Final answer
    x = 468,686.93

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Double scale
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1.5x scale

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.