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Finding the Fourth Proportional to 440,762.56, 661,392.95 and 188,019.17

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Solution

The fourth proportional to 440,762.56, 661,392.95 and 188,019.17 is: 282,135.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,762.56 : 661,392.95 = 188,019.17 : x
  2. Step 2: Convert to fraction form
    440,762.56/661,392.95 = 188,019.17/x
  3. Step 3: Cross multiply
    440,762.56x = 661,392.95 × 188,019.17
  4. Step 4: Simplify right side
    440,762.56x = 124,354,551,736.01
  5. Step 5: Solve for x
    x = 124,354,551,736.01/440,762.56
  6. Step 6: Final answer
    x = 282,135.02

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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.