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Finding the Fourth Proportional to 269,552.40, 402,577.86 and 253,456.08

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Solution

The fourth proportional to 269,552.40, 402,577.86 and 253,456.08 is: 378,537.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,552.40 : 402,577.86 = 253,456.08 : x
  2. Step 2: Convert to fraction form
    269,552.40/402,577.86 = 253,456.08/x
  3. Step 3: Cross multiply
    269,552.40x = 402,577.86 × 253,456.08
  4. Step 4: Simplify right side
    269,552.40x = 102,035,806,290.39
  5. Step 5: Solve for x
    x = 102,035,806,290.39/269,552.40
  6. Step 6: Final answer
    x = 378,537.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.