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Finding the Fourth Proportional to 322,322.40, 482,900.40 and 275,666.40

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Solution

The fourth proportional to 322,322.40, 482,900.40 and 275,666.40 is: 413,000.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,322.40 : 482,900.40 = 275,666.40 : x
  2. Step 2: Convert to fraction form
    322,322.40/482,900.40 = 275,666.40/x
  3. Step 3: Cross multiply
    322,322.40x = 482,900.40 × 275,666.40
  4. Step 4: Simplify right side
    322,322.40x = 133,119,414,826.56
  5. Step 5: Solve for x
    x = 133,119,414,826.56/322,322.40
  6. Step 6: Final answer
    x = 413,000.82

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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.