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Finding the Fourth Proportional to 520,651.89, 781,240.71 and 236,161.12

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Solution

The fourth proportional to 520,651.89, 781,240.71 and 236,161.12 is: 354,360.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,651.89 : 781,240.71 = 236,161.12 : x
  2. Step 2: Convert to fraction form
    520,651.89/781,240.71 = 236,161.12/x
  3. Step 3: Cross multiply
    520,651.89x = 781,240.71 × 236,161.12
  4. Step 4: Simplify right side
    520,651.89x = 184,498,681,063.20
  5. Step 5: Solve for x
    x = 184,498,681,063.20/520,651.89
  6. Step 6: Final answer
    x = 354,360.92

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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.