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Finding the Fourth Proportional to 440,740.34, 661,110.44 and 290,945.53

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Solution

The fourth proportional to 440,740.34, 661,110.44 and 290,945.53 is: 436,418.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,740.34 : 661,110.44 = 290,945.53 : x
  2. Step 2: Convert to fraction form
    440,740.34/661,110.44 = 290,945.53/x
  3. Step 3: Cross multiply
    440,740.34x = 661,110.44 × 290,945.53
  4. Step 4: Simplify right side
    440,740.34x = 192,347,124,048.78
  5. Step 5: Solve for x
    x = 192,347,124,048.78/440,740.34
  6. Step 6: Final answer
    x = 436,418.25

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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.