Home / 405,276.20-608,087.10-194,805.80

Finding the Fourth Proportional to 405,276.20, 608,087.10 and 194,805.80

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Solution

The fourth proportional to 405,276.20, 608,087.10 and 194,805.80 is: 292,291.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,276.20 : 608,087.10 = 194,805.80 : x
  2. Step 2: Convert to fraction form
    405,276.20/608,087.10 = 194,805.80/x
  3. Step 3: Cross multiply
    405,276.20x = 608,087.10 × 194,805.80
  4. Step 4: Simplify right side
    405,276.20x = 118,458,893,985.18
  5. Step 5: Solve for x
    x = 118,458,893,985.18/405,276.20
  6. Step 6: Final answer
    x = 292,291.76

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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.