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Finding the Fourth Proportional to 482,020.38, 718,721.10 and 468,778.50

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Solution

The fourth proportional to 482,020.38, 718,721.10 and 468,778.50 is: 698,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,020.38 : 718,721.10 = 468,778.50 : x
  2. Step 2: Convert to fraction form
    482,020.38/718,721.10 = 468,778.50/x
  3. Step 3: Cross multiply
    482,020.38x = 718,721.10 × 468,778.50
  4. Step 4: Simplify right side
    482,020.38x = 336,920,999,176.35
  5. Step 5: Solve for x
    x = 336,920,999,176.35/482,020.38
  6. Step 6: Final answer
    x = 698,976.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.