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Finding the Fourth Proportional to 557,676.96, 769,201.60 and 342,934.72

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Solution

The fourth proportional to 557,676.96, 769,201.60 and 342,934.72 is: 473,008.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,676.96 : 769,201.60 = 342,934.72 : x
  2. Step 2: Convert to fraction form
    557,676.96/769,201.60 = 342,934.72/x
  3. Step 3: Cross multiply
    557,676.96x = 769,201.60 × 342,934.72
  4. Step 4: Simplify right side
    557,676.96x = 263,785,935,319.55
  5. Step 5: Solve for x
    x = 263,785,935,319.55/557,676.96
  6. Step 6: Final answer
    x = 473,008.49

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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.