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Finding the Fourth Proportional to 323,091.40, 484,442.70 and 165,627.40

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Solution

The fourth proportional to 323,091.40, 484,442.70 and 165,627.40 is: 248,341.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,091.40 : 484,442.70 = 165,627.40 : x
  2. Step 2: Convert to fraction form
    323,091.40/484,442.70 = 165,627.40/x
  3. Step 3: Cross multiply
    323,091.40x = 484,442.70 × 165,627.40
  4. Step 4: Simplify right side
    323,091.40x = 80,236,984,849.98
  5. Step 5: Solve for x
    x = 80,236,984,849.98/323,091.40
  6. Step 6: Final answer
    x = 248,341.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.