Home / 644,678.32-966,788.66-189,142.44

Finding the Fourth Proportional to 644,678.32, 966,788.66 and 189,142.44

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Solution

The fourth proportional to 644,678.32, 966,788.66 and 189,142.44 is: 283,646.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,678.32 : 966,788.66 = 189,142.44 : x
  2. Step 2: Convert to fraction form
    644,678.32/966,788.66 = 189,142.44/x
  3. Step 3: Cross multiply
    644,678.32x = 966,788.66 × 189,142.44
  4. Step 4: Simplify right side
    644,678.32x = 182,860,766,116.73
  5. Step 5: Solve for x
    x = 182,860,766,116.73/644,678.32
  6. Step 6: Final answer
    x = 283,646.53

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Double scale
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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.