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Finding the Fourth Proportional to 526,969.77, 727,218.61 and 285,254.33

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Solution

The fourth proportional to 526,969.77, 727,218.61 and 285,254.33 is: 393,651.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,969.77 : 727,218.61 = 285,254.33 : x
  2. Step 2: Convert to fraction form
    526,969.77/727,218.61 = 285,254.33/x
  3. Step 3: Cross multiply
    526,969.77x = 727,218.61 × 285,254.33
  4. Step 4: Simplify right side
    526,969.77x = 207,442,253,009.85
  5. Step 5: Solve for x
    x = 207,442,253,009.85/526,969.77
  6. Step 6: Final answer
    x = 393,651.15

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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.