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Finding the Fourth Proportional to 386,767.12, 533,730.24 and 214,674.96

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Solution

The fourth proportional to 386,767.12, 533,730.24 and 214,674.96 is: 296,246.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,767.12 : 533,730.24 = 214,674.96 : x
  2. Step 2: Convert to fraction form
    386,767.12/533,730.24 = 214,674.96/x
  3. Step 3: Cross multiply
    386,767.12x = 533,730.24 × 214,674.96
  4. Step 4: Simplify right side
    386,767.12x = 114,578,517,922.79
  5. Step 5: Solve for x
    x = 114,578,517,922.79/386,767.12
  6. Step 6: Final answer
    x = 296,246.79

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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.