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Finding the Fourth Proportional to 712,398.96, 1,068,991.92 and 397,033.56

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Solution

The fourth proportional to 712,398.96, 1,068,991.92 and 397,033.56 is: 595,769.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,398.96 : 1,068,991.92 = 397,033.56 : x
  2. Step 2: Convert to fraction form
    712,398.96/1,068,991.92 = 397,033.56/x
  3. Step 3: Cross multiply
    712,398.96x = 1,068,991.92 × 397,033.56
  4. Step 4: Simplify right side
    712,398.96x = 424,425,667,608.84
  5. Step 5: Solve for x
    x = 424,425,667,608.84/712,398.96
  6. Step 6: Final answer
    x = 595,769.63

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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.