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Finding the Fourth Proportional to 520,576.02, 718,471.98 and 329,607.18

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Solution

The fourth proportional to 520,576.02, 718,471.98 and 329,607.18 is: 454,906.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,576.02 : 718,471.98 = 329,607.18 : x
  2. Step 2: Convert to fraction form
    520,576.02/718,471.98 = 329,607.18/x
  3. Step 3: Cross multiply
    520,576.02x = 718,471.98 × 329,607.18
  4. Step 4: Simplify right side
    520,576.02x = 236,813,523,236.82
  5. Step 5: Solve for x
    x = 236,813,523,236.82/520,576.02
  6. Step 6: Final answer
    x = 454,906.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.