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Finding the Fourth Proportional to 959,072, 1,323,519.36 and 535,136

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Solution

The fourth proportional to 959,072, 1,323,519.36 and 535,136 is: 738,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,072 : 1,323,519.36 = 535,136 : x
  2. Step 2: Convert to fraction form
    959,072/1,323,519.36 = 535,136/x
  3. Step 3: Cross multiply
    959,072x = 1,323,519.36 × 535,136
  4. Step 4: Simplify right side
    959,072x = 708,262,856,232.96
  5. Step 5: Solve for x
    x = 708,262,856,232.96/959,072
  6. Step 6: Final answer
    x = 738,487.68

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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.