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Finding the Fourth Proportional to 520,699.57, 780,768.50 and 236,234.90

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Solution

The fourth proportional to 520,699.57, 780,768.50 and 236,234.90 is: 354,224.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,699.57 : 780,768.50 = 236,234.90 : x
  2. Step 2: Convert to fraction form
    520,699.57/780,768.50 = 236,234.90/x
  3. Step 3: Cross multiply
    520,699.57x = 780,768.50 × 236,234.90
  4. Step 4: Simplify right side
    520,699.57x = 184,444,765,207.40
  5. Step 5: Solve for x
    x = 184,444,765,207.40/520,699.57
  6. Step 6: Final answer
    x = 354,224.92

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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.