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Finding the Fourth Proportional to 611,673.90, 843,769.74 and 568,374.96

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Solution

The fourth proportional to 611,673.90, 843,769.74 and 568,374.96 is: 784,041.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,673.90 : 843,769.74 = 568,374.96 : x
  2. Step 2: Convert to fraction form
    611,673.90/843,769.74 = 568,374.96/x
  3. Step 3: Cross multiply
    611,673.90x = 843,769.74 × 568,374.96
  4. Step 4: Simplify right side
    611,673.90x = 479,577,592,221.71
  5. Step 5: Solve for x
    x = 479,577,592,221.71/611,673.90
  6. Step 6: Final answer
    x = 784,041.29

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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.