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Finding the Fourth Proportional to 577,989.32, 797,278.74 and 366,021.32

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Solution

The fourth proportional to 577,989.32, 797,278.74 and 366,021.32 is: 504,889.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,989.32 : 797,278.74 = 366,021.32 : x
  2. Step 2: Convert to fraction form
    577,989.32/797,278.74 = 366,021.32/x
  3. Step 3: Cross multiply
    577,989.32x = 797,278.74 × 366,021.32
  4. Step 4: Simplify right side
    577,989.32x = 291,821,016,822.74
  5. Step 5: Solve for x
    x = 291,821,016,822.74/577,989.32
  6. Step 6: Final answer
    x = 504,889.98

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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.