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Finding the Fourth Proportional to 296,906.30, 445,359.45 and 260,042.30

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Solution

The fourth proportional to 296,906.30, 445,359.45 and 260,042.30 is: 390,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,906.30 : 445,359.45 = 260,042.30 : x
  2. Step 2: Convert to fraction form
    296,906.30/445,359.45 = 260,042.30/x
  3. Step 3: Cross multiply
    296,906.30x = 445,359.45 × 260,042.30
  4. Step 4: Simplify right side
    296,906.30x = 115,812,295,704.74
  5. Step 5: Solve for x
    x = 115,812,295,704.74/296,906.30
  6. Step 6: Final answer
    x = 390,063.45

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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.