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Finding the Fourth Proportional to 504,493.92, 696,197.02 and 278,139.44

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Solution

The fourth proportional to 504,493.92, 696,197.02 and 278,139.44 is: 383,829.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,493.92 : 696,197.02 = 278,139.44 : x
  2. Step 2: Convert to fraction form
    504,493.92/696,197.02 = 278,139.44/x
  3. Step 3: Cross multiply
    504,493.92x = 696,197.02 × 278,139.44
  4. Step 4: Simplify right side
    504,493.92x = 193,639,849,272.47
  5. Step 5: Solve for x
    x = 193,639,849,272.47/504,493.92
  6. Step 6: Final answer
    x = 383,829.90

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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.