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Finding the Fourth Proportional to 504,843.60, 696,630.24 and 278,489.04

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Solution

The fourth proportional to 504,843.60, 696,630.24 and 278,489.04 is: 384,285.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,843.60 : 696,630.24 = 278,489.04 : x
  2. Step 2: Convert to fraction form
    504,843.60/696,630.24 = 278,489.04/x
  3. Step 3: Cross multiply
    504,843.60x = 696,630.24 × 278,489.04
  4. Step 4: Simplify right side
    504,843.60x = 194,003,886,772.57
  5. Step 5: Solve for x
    x = 194,003,886,772.57/504,843.60
  6. Step 6: Final answer
    x = 384,285.13

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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.