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Finding the Fourth Proportional to 611,673.41, 843,769.05 and 568,374.45

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Solution

The fourth proportional to 611,673.41, 843,769.05 and 568,374.45 is: 784,040.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,673.41 : 843,769.05 = 568,374.45 : x
  2. Step 2: Convert to fraction form
    611,673.41/843,769.05 = 568,374.45/x
  3. Step 3: Cross multiply
    611,673.41x = 843,769.05 × 568,374.45
  4. Step 4: Simplify right side
    611,673.41x = 479,576,769,720.77
  5. Step 5: Solve for x
    x = 479,576,769,720.77/611,673.41
  6. Step 6: Final answer
    x = 784,040.58

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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.