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Finding the Fourth Proportional to 613,248.26, 920,025.47 and 213,894.77

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Solution

The fourth proportional to 613,248.26, 920,025.47 and 213,894.77 is: 320,895.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,248.26 : 920,025.47 = 213,894.77 : x
  2. Step 2: Convert to fraction form
    613,248.26/920,025.47 = 213,894.77/x
  3. Step 3: Cross multiply
    613,248.26x = 920,025.47 × 213,894.77
  4. Step 4: Simplify right side
    613,248.26x = 196,788,632,234.40
  5. Step 5: Solve for x
    x = 196,788,632,234.40/613,248.26
  6. Step 6: Final answer
    x = 320,895.54

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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.