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Finding the Fourth Proportional to 318,197.89, 439,114.70 and 174,967.15

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Solution

The fourth proportional to 318,197.89, 439,114.70 and 174,967.15 is: 241,455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,197.89 : 439,114.70 = 174,967.15 : x
  2. Step 2: Convert to fraction form
    318,197.89/439,114.70 = 174,967.15/x
  3. Step 3: Cross multiply
    318,197.89x = 439,114.70 × 174,967.15
  4. Step 4: Simplify right side
    318,197.89x = 76,830,647,582.11
  5. Step 5: Solve for x
    x = 76,830,647,582.11/318,197.89
  6. Step 6: Final answer
    x = 241,455.55

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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.