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Finding the Fourth Proportional to 514,676.80, 772,864.08 and 347,272.48

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Solution

The fourth proportional to 514,676.80, 772,864.08 and 347,272.48 is: 521,481.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,676.80 : 772,864.08 = 347,272.48 : x
  2. Step 2: Convert to fraction form
    514,676.80/772,864.08 = 347,272.48/x
  3. Step 3: Cross multiply
    514,676.80x = 772,864.08 × 347,272.48
  4. Step 4: Simplify right side
    514,676.80x = 268,394,425,764.52
  5. Step 5: Solve for x
    x = 268,394,425,764.52/514,676.80
  6. Step 6: Final answer
    x = 521,481.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.