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Finding the Fourth Proportional to 517,815.73, 714,502.24 and 326,932.21

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Solution

The fourth proportional to 517,815.73, 714,502.24 and 326,932.21 is: 451,113.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,815.73 : 714,502.24 = 326,932.21 : x
  2. Step 2: Convert to fraction form
    517,815.73/714,502.24 = 326,932.21/x
  3. Step 3: Cross multiply
    517,815.73x = 714,502.24 × 326,932.21
  4. Step 4: Simplify right side
    517,815.73x = 233,593,796,373.15
  5. Step 5: Solve for x
    x = 233,593,796,373.15/517,815.73
  6. Step 6: Final answer
    x = 451,113.75

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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.