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Finding the Fourth Proportional to 881,245, 1,216,118.10 and 523,549

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Solution

The fourth proportional to 881,245, 1,216,118.10 and 523,549 is: 722,497.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,245 : 1,216,118.10 = 523,549 : x
  2. Step 2: Convert to fraction form
    881,245/1,216,118.10 = 523,549/x
  3. Step 3: Cross multiply
    881,245x = 1,216,118.10 × 523,549
  4. Step 4: Simplify right side
    881,245x = 636,697,415,136.90
  5. Step 5: Solve for x
    x = 636,697,415,136.90/881,245
  6. Step 6: Final answer
    x = 722,497.62

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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.