Home / 630,811.40-944,661.90-419,304.20

Finding the Fourth Proportional to 630,811.40, 944,661.90 and 419,304.20

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Solution

The fourth proportional to 630,811.40, 944,661.90 and 419,304.20 is: 627,922.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,811.40 : 944,661.90 = 419,304.20 : x
  2. Step 2: Convert to fraction form
    630,811.40/944,661.90 = 419,304.20/x
  3. Step 3: Cross multiply
    630,811.40x = 944,661.90 × 419,304.20
  4. Step 4: Simplify right side
    630,811.40x = 396,100,702,249.98
  5. Step 5: Solve for x
    x = 396,100,702,249.98/630,811.40
  6. Step 6: Final answer
    x = 627,922.55

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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.