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Finding the Fourth Proportional to 348,520.70, 523,169.85 and 325,678.70

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Solution

The fourth proportional to 348,520.70, 523,169.85 and 325,678.70 is: 488,881.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,520.70 : 523,169.85 = 325,678.70 : x
  2. Step 2: Convert to fraction form
    348,520.70/523,169.85 = 325,678.70/x
  3. Step 3: Cross multiply
    348,520.70x = 523,169.85 × 325,678.70
  4. Step 4: Simplify right side
    348,520.70x = 170,385,276,627.20
  5. Step 5: Solve for x
    x = 170,385,276,627.20/348,520.70
  6. Step 6: Final answer
    x = 488,881.37

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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.