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Finding the Fourth Proportional to 577,318.10, 866,119.53 and 198,244.48

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Solution

The fourth proportional to 577,318.10, 866,119.53 and 198,244.48 is: 297,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,318.10 : 866,119.53 = 198,244.48 : x
  2. Step 2: Convert to fraction form
    577,318.10/866,119.53 = 198,244.48/x
  3. Step 3: Cross multiply
    577,318.10x = 866,119.53 × 198,244.48
  4. Step 4: Simplify right side
    577,318.10x = 171,703,415,842.69
  5. Step 5: Solve for x
    x = 171,703,415,842.69/577,318.10
  6. Step 6: Final answer
    x = 297,415.61

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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.