Home / 653,331.18-979,789.41-209,995.50

Finding the Fourth Proportional to 653,331.18, 979,789.41 and 209,995.50

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Solution

The fourth proportional to 653,331.18, 979,789.41 and 209,995.50 is: 314,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,331.18 : 979,789.41 = 209,995.50 : x
  2. Step 2: Convert to fraction form
    653,331.18/979,789.41 = 209,995.50/x
  3. Step 3: Cross multiply
    653,331.18x = 979,789.41 × 209,995.50
  4. Step 4: Simplify right side
    653,331.18x = 205,751,367,047.66
  5. Step 5: Solve for x
    x = 205,751,367,047.66/653,331.18
  6. Step 6: Final answer
    x = 314,926.60

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Similar ratio
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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.