Home / 549,103.20-823,789.80-189,279.60

Finding the Fourth Proportional to 549,103.20, 823,789.80 and 189,279.60

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Solution

The fourth proportional to 549,103.20, 823,789.80 and 189,279.60 is: 283,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,103.20 : 823,789.80 = 189,279.60 : x
  2. Step 2: Convert to fraction form
    549,103.20/823,789.80 = 189,279.60/x
  3. Step 3: Cross multiply
    549,103.20x = 823,789.80 × 189,279.60
  4. Step 4: Simplify right side
    549,103.20x = 155,926,603,828.08
  5. Step 5: Solve for x
    x = 155,926,603,828.08/549,103.20
  6. Step 6: Final answer
    x = 283,965.94

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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.