Home / 355,083.38-490,015.04-193,938.80

Finding the Fourth Proportional to 355,083.38, 490,015.04 and 193,938.80

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Solution

The fourth proportional to 355,083.38, 490,015.04 and 193,938.80 is: 267,635.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,083.38 : 490,015.04 = 193,938.80 : x
  2. Step 2: Convert to fraction form
    355,083.38/490,015.04 = 193,938.80/x
  3. Step 3: Cross multiply
    355,083.38x = 490,015.04 × 193,938.80
  4. Step 4: Simplify right side
    355,083.38x = 95,032,929,094.90
  5. Step 5: Solve for x
    x = 95,032,929,094.90/355,083.38
  6. Step 6: Final answer
    x = 267,635.54

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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.