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Finding the Fourth Proportional to 318,344.42, 439,308.14 and 175,101.32

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Solution

The fourth proportional to 318,344.42, 439,308.14 and 175,101.32 is: 241,635.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,344.42 : 439,308.14 = 175,101.32 : x
  2. Step 2: Convert to fraction form
    318,344.42/439,308.14 = 175,101.32/x
  3. Step 3: Cross multiply
    318,344.42x = 439,308.14 × 175,101.32
  4. Step 4: Simplify right side
    318,344.42x = 76,923,435,200.74
  5. Step 5: Solve for x
    x = 76,923,435,200.74/318,344.42
  6. Step 6: Final answer
    x = 241,635.88

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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.