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Finding the Fourth Proportional to 296,732.20, 445,098.30 and 186,140.20

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Solution

The fourth proportional to 296,732.20, 445,098.30 and 186,140.20 is: 279,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,732.20 : 445,098.30 = 186,140.20 : x
  2. Step 2: Convert to fraction form
    296,732.20/445,098.30 = 186,140.20/x
  3. Step 3: Cross multiply
    296,732.20x = 445,098.30 × 186,140.20
  4. Step 4: Simplify right side
    296,732.20x = 82,850,686,581.66
  5. Step 5: Solve for x
    x = 82,850,686,581.66/296,732.20
  6. Step 6: Final answer
    x = 279,210.30

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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.