Home / 453,157.03-678,734.74-411,308.83

Finding the Fourth Proportional to 453,157.03, 678,734.74 and 411,308.83

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Solution

The fourth proportional to 453,157.03, 678,734.74 and 411,308.83 is: 616,054.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,157.03 : 678,734.74 = 411,308.83 : x
  2. Step 2: Convert to fraction form
    453,157.03/678,734.74 = 411,308.83/x
  3. Step 3: Cross multiply
    453,157.03x = 678,734.74 × 411,308.83
  4. Step 4: Simplify right side
    453,157.03x = 279,169,591,789.75
  5. Step 5: Solve for x
    x = 279,169,591,789.75/453,157.03
  6. Step 6: Final answer
    x = 616,054.86

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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.