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Finding the Fourth Proportional to 940,506.30, 1,297,978.74 and 532,680.69

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Solution

The fourth proportional to 940,506.30, 1,297,978.74 and 532,680.69 is: 735,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,506.30 : 1,297,978.74 = 532,680.69 : x
  2. Step 2: Convert to fraction form
    940,506.30/1,297,978.74 = 532,680.69/x
  3. Step 3: Cross multiply
    940,506.30x = 1,297,978.74 × 532,680.69
  4. Step 4: Simplify right side
    940,506.30x = 691,408,204,920.18
  5. Step 5: Solve for x
    x = 691,408,204,920.18/940,506.30
  6. Step 6: Final answer
    x = 735,144.68

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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.