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Finding the Fourth Proportional to 626,771.91, 864,965.91 and 354,834.25

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Solution

The fourth proportional to 626,771.91, 864,965.91 and 354,834.25 is: 489,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,771.91 : 864,965.91 = 354,834.25 : x
  2. Step 2: Convert to fraction form
    626,771.91/864,965.91 = 354,834.25/x
  3. Step 3: Cross multiply
    626,771.91x = 864,965.91 × 354,834.25
  4. Step 4: Simplify right side
    626,771.91x = 306,919,529,950.42
  5. Step 5: Solve for x
    x = 306,919,529,950.42/626,771.91
  6. Step 6: Final answer
    x = 489,682.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.