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Finding the Fourth Proportional to 585,861.32, 808,477.92 and 331,212.57

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Solution

The fourth proportional to 585,861.32, 808,477.92 and 331,212.57 is: 457,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,861.32 : 808,477.92 = 331,212.57 : x
  2. Step 2: Convert to fraction form
    585,861.32/808,477.92 = 331,212.57/x
  3. Step 3: Cross multiply
    585,861.32x = 808,477.92 × 331,212.57
  4. Step 4: Simplify right side
    585,861.32x = 267,778,049,671.45
  5. Step 5: Solve for x
    x = 267,778,049,671.45/585,861.32
  6. Step 6: Final answer
    x = 457,067.30

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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.