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Finding the Fourth Proportional to 403,319.79, 604,996.38 and 119,010.34

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Solution

The fourth proportional to 403,319.79, 604,996.38 and 119,010.34 is: 178,520.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,319.79 : 604,996.38 = 119,010.34 : x
  2. Step 2: Convert to fraction form
    403,319.79/604,996.38 = 119,010.34/x
  3. Step 3: Cross multiply
    403,319.79x = 604,996.38 × 119,010.34
  4. Step 4: Simplify right side
    403,319.79x = 72,000,822,775.03
  5. Step 5: Solve for x
    x = 72,000,822,775.03/403,319.79
  6. Step 6: Final answer
    x = 178,520.43

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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.