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Finding the Fourth Proportional to 806,544.76, 1,113,023.12 and 443,960.88

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Solution

The fourth proportional to 806,544.76, 1,113,023.12 and 443,960.88 is: 612,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,544.76 : 1,113,023.12 = 443,960.88 : x
  2. Step 2: Convert to fraction form
    806,544.76/1,113,023.12 = 443,960.88/x
  3. Step 3: Cross multiply
    806,544.76x = 1,113,023.12 × 443,960.88
  4. Step 4: Simplify right side
    806,544.76x = 494,138,723,815.55
  5. Step 5: Solve for x
    x = 494,138,723,815.55/806,544.76
  6. Step 6: Final answer
    x = 612,661.25

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Double scale
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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.