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Finding the Fourth Proportional to 520,650.89, 781,239.21 and 236,160.12

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Solution

The fourth proportional to 520,650.89, 781,239.21 and 236,160.12 is: 354,359.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,650.89 : 781,239.21 = 236,160.12 : x
  2. Step 2: Convert to fraction form
    520,650.89/781,239.21 = 236,160.12/x
  3. Step 3: Cross multiply
    520,650.89x = 781,239.21 × 236,160.12
  4. Step 4: Simplify right side
    520,650.89x = 184,497,545,582.31
  5. Step 5: Solve for x
    x = 184,497,545,582.31/520,650.89
  6. Step 6: Final answer
    x = 354,359.42

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Double scale
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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.