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Finding the Fourth Proportional to 659,366, 988,960.44 and 186,089.36

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Solution

The fourth proportional to 659,366, 988,960.44 and 186,089.36 is: 279,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,366 : 988,960.44 = 186,089.36 : x
  2. Step 2: Convert to fraction form
    659,366/988,960.44 = 186,089.36/x
  3. Step 3: Cross multiply
    659,366x = 988,960.44 × 186,089.36
  4. Step 4: Simplify right side
    659,366x = 184,035,015,344.92
  5. Step 5: Solve for x
    x = 184,035,015,344.92/659,366
  6. Step 6: Final answer
    x = 279,109.05

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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.