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Finding the Fourth Proportional to 468,817.21, 701,223.12 and 391,409.71

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Solution

The fourth proportional to 468,817.21, 701,223.12 and 391,409.71 is: 585,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,817.21 : 701,223.12 = 391,409.71 : x
  2. Step 2: Convert to fraction form
    468,817.21/701,223.12 = 391,409.71/x
  3. Step 3: Cross multiply
    468,817.21x = 701,223.12 × 391,409.71
  4. Step 4: Simplify right side
    468,817.21x = 274,465,537,840.50
  5. Step 5: Solve for x
    x = 274,465,537,840.50/468,817.21
  6. Step 6: Final answer
    x = 585,442.54

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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.