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Finding the Fourth Proportional to 318,330.84, 439,296.77 and 175,101.78

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Solution

The fourth proportional to 318,330.84, 439,296.77 and 175,101.78 is: 241,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,330.84 : 439,296.77 = 175,101.78 : x
  2. Step 2: Convert to fraction form
    318,330.84/439,296.77 = 175,101.78/x
  3. Step 3: Cross multiply
    318,330.84x = 439,296.77 × 175,101.78
  4. Step 4: Simplify right side
    318,330.84x = 76,921,646,375.25
  5. Step 5: Solve for x
    x = 76,921,646,375.25/318,330.84
  6. Step 6: Final answer
    x = 241,640.57

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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.