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Finding the Fourth Proportional to 423,074.44, 634,777.80 and 186,250.96

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Solution

The fourth proportional to 423,074.44, 634,777.80 and 186,250.96 is: 279,449.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,074.44 : 634,777.80 = 186,250.96 : x
  2. Step 2: Convert to fraction form
    423,074.44/634,777.80 = 186,250.96/x
  3. Step 3: Cross multiply
    423,074.44x = 634,777.80 × 186,250.96
  4. Step 4: Simplify right side
    423,074.44x = 118,227,974,636.69
  5. Step 5: Solve for x
    x = 118,227,974,636.69/423,074.44
  6. Step 6: Final answer
    x = 279,449.58

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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.