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Finding the Fourth Proportional to 353,455.80, 530,183.70 and 314,748.60

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Solution

The fourth proportional to 353,455.80, 530,183.70 and 314,748.60 is: 472,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,455.80 : 530,183.70 = 314,748.60 : x
  2. Step 2: Convert to fraction form
    353,455.80/530,183.70 = 314,748.60/x
  3. Step 3: Cross multiply
    353,455.80x = 530,183.70 × 314,748.60
  4. Step 4: Simplify right side
    353,455.80x = 166,874,577,317.82
  5. Step 5: Solve for x
    x = 166,874,577,317.82/353,455.80
  6. Step 6: Final answer
    x = 472,122.90

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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.