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Finding the Fourth Proportional to 719,614.56, 993,083.56 and 397,345.04

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Solution

The fourth proportional to 719,614.56, 993,083.56 and 397,345.04 is: 548,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,614.56 : 993,083.56 = 397,345.04 : x
  2. Step 2: Convert to fraction form
    719,614.56/993,083.56 = 397,345.04/x
  3. Step 3: Cross multiply
    719,614.56x = 993,083.56 × 397,345.04
  4. Step 4: Simplify right side
    719,614.56x = 394,596,826,871.54
  5. Step 5: Solve for x
    x = 394,596,826,871.54/719,614.56
  6. Step 6: Final answer
    x = 548,344.70

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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.