Home / 623,989.35-861,105.15-352,054.80

Finding the Fourth Proportional to 623,989.35, 861,105.15 and 352,054.80

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Solution

The fourth proportional to 623,989.35, 861,105.15 and 352,054.80 is: 485,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,989.35 : 861,105.15 = 352,054.80 : x
  2. Step 2: Convert to fraction form
    623,989.35/861,105.15 = 352,054.80/x
  3. Step 3: Cross multiply
    623,989.35x = 861,105.15 × 352,054.80
  4. Step 4: Simplify right side
    623,989.35x = 303,156,201,362.22
  5. Step 5: Solve for x
    x = 303,156,201,362.22/623,989.35
  6. Step 6: Final answer
    x = 485,835.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.