Home / 320,872.73-442,665.34-193,477.55

Finding the Fourth Proportional to 320,872.73, 442,665.34 and 193,477.55

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Solution

The fourth proportional to 320,872.73, 442,665.34 and 193,477.55 is: 266,915.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,872.73 : 442,665.34 = 193,477.55 : x
  2. Step 2: Convert to fraction form
    320,872.73/442,665.34 = 193,477.55/x
  3. Step 3: Cross multiply
    320,872.73x = 442,665.34 × 193,477.55
  4. Step 4: Simplify right side
    320,872.73x = 85,645,805,453.12
  5. Step 5: Solve for x
    x = 85,645,805,453.12/320,872.73
  6. Step 6: Final answer
    x = 266,915.19

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1.5x scale

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.