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Finding the Fourth Proportional to 360,980.88, 497,040.94 and 320,624.52

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Solution

The fourth proportional to 360,980.88, 497,040.94 and 320,624.52 is: 441,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,980.88 : 497,040.94 = 320,624.52 : x
  2. Step 2: Convert to fraction form
    360,980.88/497,040.94 = 320,624.52/x
  3. Step 3: Cross multiply
    360,980.88x = 497,040.94 × 320,624.52
  4. Step 4: Simplify right side
    360,980.88x = 159,363,508,719.52
  5. Step 5: Solve for x
    x = 159,363,508,719.52/360,980.88
  6. Step 6: Final answer
    x = 441,473.55

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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.