Home / 454,811.20-681,779.40-353,553.10

Finding the Fourth Proportional to 454,811.20, 681,779.40 and 353,553.10

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Solution

The fourth proportional to 454,811.20, 681,779.40 and 353,553.10 is: 529,989.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,811.20 : 681,779.40 = 353,553.10 : x
  2. Step 2: Convert to fraction form
    454,811.20/681,779.40 = 353,553.10/x
  3. Step 3: Cross multiply
    454,811.20x = 681,779.40 × 353,553.10
  4. Step 4: Simplify right side
    454,811.20x = 241,045,220,386.14
  5. Step 5: Solve for x
    x = 241,045,220,386.14/454,811.20
  6. Step 6: Final answer
    x = 529,989.63

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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.