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Finding the Fourth Proportional to 521,884.20, 782,243.10 and 297,352.20

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Solution

The fourth proportional to 521,884.20, 782,243.10 and 297,352.20 is: 445,696.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,884.20 : 782,243.10 = 297,352.20 : x
  2. Step 2: Convert to fraction form
    521,884.20/782,243.10 = 297,352.20/x
  3. Step 3: Cross multiply
    521,884.20x = 782,243.10 × 297,352.20
  4. Step 4: Simplify right side
    521,884.20x = 232,601,706,719.82
  5. Step 5: Solve for x
    x = 232,601,706,719.82/521,884.20
  6. Step 6: Final answer
    x = 445,696.01

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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.