Home / 320,795.21-442,690.69-175,597.43

Finding the Fourth Proportional to 320,795.21, 442,690.69 and 175,597.43

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Solution

The fourth proportional to 320,795.21, 442,690.69 and 175,597.43 is: 242,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,795.21 : 442,690.69 = 175,597.43 : x
  2. Step 2: Convert to fraction form
    320,795.21/442,690.69 = 175,597.43/x
  3. Step 3: Cross multiply
    320,795.21x = 442,690.69 × 175,597.43
  4. Step 4: Simplify right side
    320,795.21x = 77,735,348,732.26
  5. Step 5: Solve for x
    x = 77,735,348,732.26/320,795.21
  6. Step 6: Final answer
    x = 242,320.79

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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.