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Finding the Fourth Proportional to 592,247.80, 889,062.90 and 339,729.40

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Solution

The fourth proportional to 592,247.80, 889,062.90 and 339,729.40 is: 509,990.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,247.80 : 889,062.90 = 339,729.40 : x
  2. Step 2: Convert to fraction form
    592,247.80/889,062.90 = 339,729.40/x
  3. Step 3: Cross multiply
    592,247.80x = 889,062.90 × 339,729.40
  4. Step 4: Simplify right side
    592,247.80x = 302,040,805,579.26
  5. Step 5: Solve for x
    x = 302,040,805,579.26/592,247.80
  6. Step 6: Final answer
    x = 509,990.59

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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.