Home / 819,380.61-1,130,745.96-456,797.21

Finding the Fourth Proportional to 819,380.61, 1,130,745.96 and 456,797.21

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Solution

The fourth proportional to 819,380.61, 1,130,745.96 and 456,797.21 is: 630,380.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,380.61 : 1,130,745.96 = 456,797.21 : x
  2. Step 2: Convert to fraction form
    819,380.61/1,130,745.96 = 456,797.21/x
  3. Step 3: Cross multiply
    819,380.61x = 1,130,745.96 × 456,797.21
  4. Step 4: Simplify right side
    819,380.61x = 516,521,594,093.04
  5. Step 5: Solve for x
    x = 516,521,594,093.04/819,380.61
  6. Step 6: Final answer
    x = 630,380.54

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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.