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Finding the Fourth Proportional to 504,493.44, 696,190.40 and 278,139.52

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Solution

The fourth proportional to 504,493.44, 696,190.40 and 278,139.52 is: 383,826.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,493.44 : 696,190.40 = 278,139.52 : x
  2. Step 2: Convert to fraction form
    504,493.44/696,190.40 = 278,139.52/x
  3. Step 3: Cross multiply
    504,493.44x = 696,190.40 × 278,139.52
  4. Step 4: Simplify right side
    504,493.44x = 193,638,063,684.61
  5. Step 5: Solve for x
    x = 193,638,063,684.61/504,493.44
  6. Step 6: Final answer
    x = 383,826.72

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Double scale
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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.