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Finding the Fourth Proportional to 802,161.12, 1,202,431.56 and 502,851.49

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Solution

The fourth proportional to 802,161.12, 1,202,431.56 and 502,851.49 is: 753,769.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,161.12 : 1,202,431.56 = 502,851.49 : x
  2. Step 2: Convert to fraction form
    802,161.12/1,202,431.56 = 502,851.49/x
  3. Step 3: Cross multiply
    802,161.12x = 1,202,431.56 × 502,851.49
  4. Step 4: Simplify right side
    802,161.12x = 604,644,501,569.02
  5. Step 5: Solve for x
    x = 604,644,501,569.02/802,161.12
  6. Step 6: Final answer
    x = 753,769.39

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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.