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Finding the Fourth Proportional to 318,464.88, 439,492.12 and 175,235.44

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Solution

The fourth proportional to 318,464.88, 439,492.12 and 175,235.44 is: 241,830.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,464.88 : 439,492.12 = 175,235.44 : x
  2. Step 2: Convert to fraction form
    318,464.88/439,492.12 = 175,235.44/x
  3. Step 3: Cross multiply
    318,464.88x = 439,492.12 × 175,235.44
  4. Step 4: Simplify right side
    318,464.88x = 77,014,595,024.73
  5. Step 5: Solve for x
    x = 77,014,595,024.73/318,464.88
  6. Step 6: Final answer
    x = 241,830.73

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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.