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Finding the Fourth Proportional to 352,330.40, 529,532.40 and 306,711.20

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Solution

The fourth proportional to 352,330.40, 529,532.40 and 306,711.20 is: 460,969.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,330.40 : 529,532.40 = 306,711.20 : x
  2. Step 2: Convert to fraction form
    352,330.40/529,532.40 = 306,711.20/x
  3. Step 3: Cross multiply
    352,330.40x = 529,532.40 × 306,711.20
  4. Step 4: Simplify right side
    352,330.40x = 162,413,517,842.88
  5. Step 5: Solve for x
    x = 162,413,517,842.88/352,330.40
  6. Step 6: Final answer
    x = 460,969.36

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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.