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Finding the Fourth Proportional to 592,431.39, 889,007.94 and 213,320.41

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Solution

The fourth proportional to 592,431.39, 889,007.94 and 213,320.41 is: 320,110.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,431.39 : 889,007.94 = 213,320.41 : x
  2. Step 2: Convert to fraction form
    592,431.39/889,007.94 = 213,320.41/x
  3. Step 3: Cross multiply
    592,431.39x = 889,007.94 × 213,320.41
  4. Step 4: Simplify right side
    592,431.39x = 189,643,538,254.06
  5. Step 5: Solve for x
    x = 189,643,538,254.06/592,431.39
  6. Step 6: Final answer
    x = 320,110.55

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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.