Home / 391,941.04-541,145.76-263,072.80

Finding the Fourth Proportional to 391,941.04, 541,145.76 and 263,072.80

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Solution

The fourth proportional to 391,941.04, 541,145.76 and 263,072.80 is: 363,219.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,941.04 : 541,145.76 = 263,072.80 : x
  2. Step 2: Convert to fraction form
    391,941.04/541,145.76 = 263,072.80/x
  3. Step 3: Cross multiply
    391,941.04x = 541,145.76 × 263,072.80
  4. Step 4: Simplify right side
    391,941.04x = 142,360,730,291.33
  5. Step 5: Solve for x
    x = 142,360,730,291.33/391,941.04
  6. Step 6: Final answer
    x = 363,219.76

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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.