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Finding the Fourth Proportional to 645,008.81, 967,521.85 and 224,292.65

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Solution

The fourth proportional to 645,008.81, 967,521.85 and 224,292.65 is: 336,441.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,008.81 : 967,521.85 = 224,292.65 : x
  2. Step 2: Convert to fraction form
    645,008.81/967,521.85 = 224,292.65/x
  3. Step 3: Cross multiply
    645,008.81x = 967,521.85 × 224,292.65
  4. Step 4: Simplify right side
    645,008.81x = 217,008,034,271.06
  5. Step 5: Solve for x
    x = 217,008,034,271.06/645,008.81
  6. Step 6: Final answer
    x = 336,441.97

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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.