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Finding the Fourth Proportional to 404,624.10, 606,936.15 and 218,000.10

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Solution

The fourth proportional to 404,624.10, 606,936.15 and 218,000.10 is: 327,000.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,624.10 : 606,936.15 = 218,000.10 : x
  2. Step 2: Convert to fraction form
    404,624.10/606,936.15 = 218,000.10/x
  3. Step 3: Cross multiply
    404,624.10x = 606,936.15 × 218,000.10
  4. Step 4: Simplify right side
    404,624.10x = 132,312,141,393.62
  5. Step 5: Solve for x
    x = 132,312,141,393.62/404,624.10
  6. Step 6: Final answer
    x = 327,000.15

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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.