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Finding the Fourth Proportional to 504,601.34, 696,334.95 and 278,246.78

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Solution

The fourth proportional to 504,601.34, 696,334.95 and 278,246.78 is: 383,972.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,601.34 : 696,334.95 = 278,246.78 : x
  2. Step 2: Convert to fraction form
    504,601.34/696,334.95 = 278,246.78/x
  3. Step 3: Cross multiply
    504,601.34x = 696,334.95 × 278,246.78
  4. Step 4: Simplify right side
    504,601.34x = 193,752,957,638.96
  5. Step 5: Solve for x
    x = 193,752,957,638.96/504,601.34
  6. Step 6: Final answer
    x = 383,972.34

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Double scale
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Similar ratio
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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.