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Finding the Fourth Proportional to 969,567, 1,338,237.96 and 561,602.80

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Solution

The fourth proportional to 969,567, 1,338,237.96 and 561,602.80 is: 775,148.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,567 : 1,338,237.96 = 561,602.80 : x
  2. Step 2: Convert to fraction form
    969,567/1,338,237.96 = 561,602.80/x
  3. Step 3: Cross multiply
    969,567x = 1,338,237.96 × 561,602.80
  4. Step 4: Simplify right side
    969,567x = 751,558,185,402.29
  5. Step 5: Solve for x
    x = 751,558,185,402.29/969,567
  6. Step 6: Final answer
    x = 775,148.27

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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.