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Finding the Fourth Proportional to 476,843.60, 715,265.40 and 255,659.60

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Solution

The fourth proportional to 476,843.60, 715,265.40 and 255,659.60 is: 383,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,843.60 : 715,265.40 = 255,659.60 : x
  2. Step 2: Convert to fraction form
    476,843.60/715,265.40 = 255,659.60/x
  3. Step 3: Cross multiply
    476,843.60x = 715,265.40 × 255,659.60
  4. Step 4: Simplify right side
    476,843.60x = 182,864,466,057.84
  5. Step 5: Solve for x
    x = 182,864,466,057.84/476,843.60
  6. Step 6: Final answer
    x = 383,489.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.