Home / 689,899.82-952,093.06-383,995.73

Finding the Fourth Proportional to 689,899.82, 952,093.06 and 383,995.73

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Solution

The fourth proportional to 689,899.82, 952,093.06 and 383,995.73 is: 529,931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,899.82 : 952,093.06 = 383,995.73 : x
  2. Step 2: Convert to fraction form
    689,899.82/952,093.06 = 383,995.73/x
  3. Step 3: Cross multiply
    689,899.82x = 952,093.06 × 383,995.73
  4. Step 4: Simplify right side
    689,899.82x = 365,599,671,022.88
  5. Step 5: Solve for x
    x = 365,599,671,022.88/689,899.82
  6. Step 6: Final answer
    x = 529,931.53

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Half scale
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Double scale
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Similar ratio
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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.