Home / 436,619.70-653,617.35-259,035.30

Finding the Fourth Proportional to 436,619.70, 653,617.35 and 259,035.30

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Solution

The fourth proportional to 436,619.70, 653,617.35 and 259,035.30 is: 387,774.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,619.70 : 653,617.35 = 259,035.30 : x
  2. Step 2: Convert to fraction form
    436,619.70/653,617.35 = 259,035.30/x
  3. Step 3: Cross multiply
    436,619.70x = 653,617.35 × 259,035.30
  4. Step 4: Simplify right side
    436,619.70x = 169,309,966,342.46
  5. Step 5: Solve for x
    x = 169,309,966,342.46/436,619.70
  6. Step 6: Final answer
    x = 387,774.46

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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.