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Finding the Fourth Proportional to 592,963.56, 818,296.32 and 321,037.40

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Solution

The fourth proportional to 592,963.56, 818,296.32 and 321,037.40 is: 443,035.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,963.56 : 818,296.32 = 321,037.40 : x
  2. Step 2: Convert to fraction form
    592,963.56/818,296.32 = 321,037.40/x
  3. Step 3: Cross multiply
    592,963.56x = 818,296.32 × 321,037.40
  4. Step 4: Simplify right side
    592,963.56x = 262,703,723,002.37
  5. Step 5: Solve for x
    x = 262,703,723,002.37/592,963.56
  6. Step 6: Final answer
    x = 443,035.19

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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.