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Finding the Fourth Proportional to 592,980.22, 818,302.78 and 321,045.90

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Solution

The fourth proportional to 592,980.22, 818,302.78 and 321,045.90 is: 443,037.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,980.22 : 818,302.78 = 321,045.90 : x
  2. Step 2: Convert to fraction form
    592,980.22/818,302.78 = 321,045.90/x
  3. Step 3: Cross multiply
    592,980.22x = 818,302.78 × 321,045.90
  4. Step 4: Simplify right side
    592,980.22x = 262,712,750,872.37
  5. Step 5: Solve for x
    x = 262,712,750,872.37/592,980.22
  6. Step 6: Final answer
    x = 443,037.97

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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.