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Finding the Fourth Proportional to 422,598.01, 633,903.97 and 118,999.47

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Solution

The fourth proportional to 422,598.01, 633,903.97 and 118,999.47 is: 178,501.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,598.01 : 633,903.97 = 118,999.47 : x
  2. Step 2: Convert to fraction form
    422,598.01/633,903.97 = 118,999.47/x
  3. Step 3: Cross multiply
    422,598.01x = 633,903.97 × 118,999.47
  4. Step 4: Simplify right side
    422,598.01x = 75,434,236,646.12
  5. Step 5: Solve for x
    x = 75,434,236,646.12/422,598.01
  6. Step 6: Final answer
    x = 178,501.16

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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.