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Finding the Fourth Proportional to 567,676.32, 783,376.56 and 313,027.44

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Solution

The fourth proportional to 567,676.32, 783,376.56 and 313,027.44 is: 431,968.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,676.32 : 783,376.56 = 313,027.44 : x
  2. Step 2: Convert to fraction form
    567,676.32/783,376.56 = 313,027.44/x
  3. Step 3: Cross multiply
    567,676.32x = 783,376.56 × 313,027.44
  4. Step 4: Simplify right side
    567,676.32x = 245,218,359,132.81
  5. Step 5: Solve for x
    x = 245,218,359,132.81/567,676.32
  6. Step 6: Final answer
    x = 431,968.62

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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.