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Finding the Fourth Proportional to 353,046.89, 487,192.77 and 202,114.73

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Solution

The fourth proportional to 353,046.89, 487,192.77 and 202,114.73 is: 278,911.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,046.89 : 487,192.77 = 202,114.73 : x
  2. Step 2: Convert to fraction form
    353,046.89/487,192.77 = 202,114.73/x
  3. Step 3: Cross multiply
    353,046.89x = 487,192.77 × 202,114.73
  4. Step 4: Simplify right side
    353,046.89x = 98,468,835,166.50
  5. Step 5: Solve for x
    x = 98,468,835,166.50/353,046.89
  6. Step 6: Final answer
    x = 278,911.49

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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.