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Finding the Fourth Proportional to 347,262.70, 520,074.85 and 214,552.30

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Solution

The fourth proportional to 347,262.70, 520,074.85 and 214,552.30 is: 321,322.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,262.70 : 520,074.85 = 214,552.30 : x
  2. Step 2: Convert to fraction form
    347,262.70/520,074.85 = 214,552.30/x
  3. Step 3: Cross multiply
    347,262.70x = 520,074.85 × 214,552.30
  4. Step 4: Simplify right side
    347,262.70x = 111,583,255,239.66
  5. Step 5: Solve for x
    x = 111,583,255,239.66/347,262.70
  6. Step 6: Final answer
    x = 321,322.32

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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.