Home / 619,736.58-927,611.90-319,808.64

Finding the Fourth Proportional to 619,736.58, 927,611.90 and 319,808.64

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Solution

The fourth proportional to 619,736.58, 927,611.90 and 319,808.64 is: 478,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,736.58 : 927,611.90 = 319,808.64 : x
  2. Step 2: Convert to fraction form
    619,736.58/927,611.90 = 319,808.64/x
  3. Step 3: Cross multiply
    619,736.58x = 927,611.90 × 319,808.64
  4. Step 4: Simplify right side
    619,736.58x = 296,658,300,186.82
  5. Step 5: Solve for x
    x = 296,658,300,186.82/619,736.58
  6. Step 6: Final answer
    x = 478,684.51

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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.