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Finding the Fourth Proportional to 334,340.91, 501,509.58 and 81,622.73

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Solution

The fourth proportional to 334,340.91, 501,509.58 and 81,622.73 is: 122,433.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,340.91 : 501,509.58 = 81,622.73 : x
  2. Step 2: Convert to fraction form
    334,340.91/501,509.58 = 81,622.73/x
  3. Step 3: Cross multiply
    334,340.91x = 501,509.58 × 81,622.73
  4. Step 4: Simplify right side
    334,340.91x = 40,934,578,533.21
  5. Step 5: Solve for x
    x = 40,934,578,533.21/334,340.91
  6. Step 6: Final answer
    x = 122,433.65

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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.