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Finding the Fourth Proportional to 318,244.38, 439,180.47 and 175,005.48

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Solution

The fourth proportional to 318,244.38, 439,180.47 and 175,005.48 is: 241,509.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,244.38 : 439,180.47 = 175,005.48 : x
  2. Step 2: Convert to fraction form
    318,244.38/439,180.47 = 175,005.48/x
  3. Step 3: Cross multiply
    318,244.38x = 439,180.47 × 175,005.48
  4. Step 4: Simplify right side
    318,244.38x = 76,858,988,958.98
  5. Step 5: Solve for x
    x = 76,858,988,958.98/318,244.38
  6. Step 6: Final answer
    x = 241,509.34

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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.