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Finding the Fourth Proportional to 959,074, 1,323,522.12 and 535,138

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Solution

The fourth proportional to 959,074, 1,323,522.12 and 535,138 is: 738,490.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,074 : 1,323,522.12 = 535,138 : x
  2. Step 2: Convert to fraction form
    959,074/1,323,522.12 = 535,138/x
  3. Step 3: Cross multiply
    959,074x = 1,323,522.12 × 535,138
  4. Step 4: Simplify right side
    959,074x = 708,266,980,252.56
  5. Step 5: Solve for x
    x = 708,266,980,252.56/959,074
  6. Step 6: Final answer
    x = 738,490.44

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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.