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Finding the Fourth Proportional to 719,852.18, 993,377.00 and 397,555.34

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Solution

The fourth proportional to 719,852.18, 993,377.00 and 397,555.34 is: 548,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,852.18 : 993,377.00 = 397,555.34 : x
  2. Step 2: Convert to fraction form
    719,852.18/993,377.00 = 397,555.34/x
  3. Step 3: Cross multiply
    719,852.18x = 993,377.00 × 397,555.34
  4. Step 4: Simplify right side
    719,852.18x = 394,922,324,028.52
  5. Step 5: Solve for x
    x = 394,922,324,028.52/719,852.18
  6. Step 6: Final answer
    x = 548,615.87

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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.