Home / 619,226.48-854,169.60-389,419.25

Finding the Fourth Proportional to 619,226.48, 854,169.60 and 389,419.25

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Solution

The fourth proportional to 619,226.48, 854,169.60 and 389,419.25 is: 537,170.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,226.48 : 854,169.60 = 389,419.25 : x
  2. Step 2: Convert to fraction form
    619,226.48/854,169.60 = 389,419.25/x
  3. Step 3: Cross multiply
    619,226.48x = 854,169.60 × 389,419.25
  4. Step 4: Simplify right side
    619,226.48x = 332,630,080,733.95
  5. Step 5: Solve for x
    x = 332,630,080,733.95/619,226.48
  6. Step 6: Final answer
    x = 537,170.32

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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.