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Finding the Fourth Proportional to 704,797.44, 972,620.09 and 398,868.27

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Solution

The fourth proportional to 704,797.44, 972,620.09 and 398,868.27 is: 550,438.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,797.44 : 972,620.09 = 398,868.27 : x
  2. Step 2: Convert to fraction form
    704,797.44/972,620.09 = 398,868.27/x
  3. Step 3: Cross multiply
    704,797.44x = 972,620.09 × 398,868.27
  4. Step 4: Simplify right side
    704,797.44x = 387,947,290,671.20
  5. Step 5: Solve for x
    x = 387,947,290,671.20/704,797.44
  6. Step 6: Final answer
    x = 550,438.00

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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.