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Finding the Fourth Proportional to 353,455.92, 487,801.58 and 200,543.85

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Solution

The fourth proportional to 353,455.92, 487,801.58 and 200,543.85 is: 276,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,455.92 : 487,801.58 = 200,543.85 : x
  2. Step 2: Convert to fraction form
    353,455.92/487,801.58 = 200,543.85/x
  3. Step 3: Cross multiply
    353,455.92x = 487,801.58 × 200,543.85
  4. Step 4: Simplify right side
    353,455.92x = 97,825,605,886.56
  5. Step 5: Solve for x
    x = 97,825,605,886.56/353,455.92
  6. Step 6: Final answer
    x = 276,768.90

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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.