Home / 403,530.45-604,981.91-261,074.73

Finding the Fourth Proportional to 403,530.45, 604,981.91 and 261,074.73

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Solution

The fourth proportional to 403,530.45, 604,981.91 and 261,074.73 is: 391,409.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,530.45 : 604,981.91 = 261,074.73 : x
  2. Step 2: Convert to fraction form
    403,530.45/604,981.91 = 261,074.73/x
  3. Step 3: Cross multiply
    403,530.45x = 604,981.91 × 261,074.73
  4. Step 4: Simplify right side
    403,530.45x = 157,945,487,502.76
  5. Step 5: Solve for x
    x = 157,945,487,502.76/403,530.45
  6. Step 6: Final answer
    x = 391,409.09

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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.