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Finding the Fourth Proportional to 569,052.71, 784,380.65 and 385,233.31

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Solution

The fourth proportional to 569,052.71, 784,380.65 and 385,233.31 is: 531,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,052.71 : 784,380.65 = 385,233.31 : x
  2. Step 2: Convert to fraction form
    569,052.71/784,380.65 = 385,233.31/x
  3. Step 3: Cross multiply
    569,052.71x = 784,380.65 × 385,233.31
  4. Step 4: Simplify right side
    569,052.71x = 302,169,554,099.45
  5. Step 5: Solve for x
    x = 302,169,554,099.45/569,052.71
  6. Step 6: Final answer
    x = 531,004.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.