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Finding the Fourth Proportional to 318,343.92, 439,307.39 and 175,100.89

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Solution

The fourth proportional to 318,343.92, 439,307.39 and 175,100.89 is: 241,635.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,343.92 : 439,307.39 = 175,100.89 : x
  2. Step 2: Convert to fraction form
    318,343.92/439,307.39 = 175,100.89/x
  3. Step 3: Cross multiply
    318,343.92x = 439,307.39 × 175,100.89
  4. Step 4: Simplify right side
    318,343.92x = 76,923,114,972.58
  5. Step 5: Solve for x
    x = 76,923,114,972.58/318,343.92
  6. Step 6: Final answer
    x = 241,635.26

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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.