Home / 436,583.70-653,563.35-258,999.30

Finding the Fourth Proportional to 436,583.70, 653,563.35 and 258,999.30

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Solution

The fourth proportional to 436,583.70, 653,563.35 and 258,999.30 is: 387,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,583.70 : 653,563.35 = 258,999.30 : x
  2. Step 2: Convert to fraction form
    436,583.70/653,563.35 = 258,999.30/x
  3. Step 3: Cross multiply
    436,583.70x = 653,563.35 × 258,999.30
  4. Step 4: Simplify right side
    436,583.70x = 169,272,450,155.66
  5. Step 5: Solve for x
    x = 169,272,450,155.66/436,583.70
  6. Step 6: Final answer
    x = 387,720.50

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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.