Home / 353,109.60-529,664.40-324,079.20

Finding the Fourth Proportional to 353,109.60, 529,664.40 and 324,079.20

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Solution

The fourth proportional to 353,109.60, 529,664.40 and 324,079.20 is: 486,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,109.60 : 529,664.40 = 324,079.20 : x
  2. Step 2: Convert to fraction form
    353,109.60/529,664.40 = 324,079.20/x
  3. Step 3: Cross multiply
    353,109.60x = 529,664.40 × 324,079.20
  4. Step 4: Simplify right side
    353,109.60x = 171,653,215,020.48
  5. Step 5: Solve for x
    x = 171,653,215,020.48/353,109.60
  6. Step 6: Final answer
    x = 486,118.80

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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.