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Finding the Fourth Proportional to 507,860.56, 700,828.78 and 275,282.50

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Solution

The fourth proportional to 507,860.56, 700,828.78 and 275,282.50 is: 379,879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,860.56 : 700,828.78 = 275,282.50 : x
  2. Step 2: Convert to fraction form
    507,860.56/700,828.78 = 275,282.50/x
  3. Step 3: Cross multiply
    507,860.56x = 700,828.78 × 275,282.50
  4. Step 4: Simplify right side
    507,860.56x = 192,925,899,705.47
  5. Step 5: Solve for x
    x = 192,925,899,705.47/507,860.56
  6. Step 6: Final answer
    x = 379,879.67

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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.