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Finding the Fourth Proportional to 521,354.76, 719,680.59 and 441,198.78

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Solution

The fourth proportional to 521,354.76, 719,680.59 and 441,198.78 is: 609,032.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,354.76 : 719,680.59 = 441,198.78 : x
  2. Step 2: Convert to fraction form
    521,354.76/719,680.59 = 441,198.78/x
  3. Step 3: Cross multiply
    521,354.76x = 719,680.59 × 441,198.78
  4. Step 4: Simplify right side
    521,354.76x = 317,522,198,297.68
  5. Step 5: Solve for x
    x = 317,522,198,297.68/521,354.76
  6. Step 6: Final answer
    x = 609,032.89

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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.