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Finding the Fourth Proportional to 974,234, 1,344,442.92 and 538,651.64

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Solution

The fourth proportional to 974,234, 1,344,442.92 and 538,651.64 is: 743,339.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,234 : 1,344,442.92 = 538,651.64 : x
  2. Step 2: Convert to fraction form
    974,234/1,344,442.92 = 538,651.64/x
  3. Step 3: Cross multiply
    974,234x = 1,344,442.92 × 538,651.64
  4. Step 4: Simplify right side
    974,234x = 724,186,383,744.39
  5. Step 5: Solve for x
    x = 724,186,383,744.39/974,234
  6. Step 6: Final answer
    x = 743,339.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.