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Finding the Fourth Proportional to 369,522.45, 509,940.77 and 199,756.89

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Solution

The fourth proportional to 369,522.45, 509,940.77 and 199,756.89 is: 275,664.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,522.45 : 509,940.77 = 199,756.89 : x
  2. Step 2: Convert to fraction form
    369,522.45/509,940.77 = 199,756.89/x
  3. Step 3: Cross multiply
    369,522.45x = 509,940.77 × 199,756.89
  4. Step 4: Simplify right side
    369,522.45x = 101,864,182,299.41
  5. Step 5: Solve for x
    x = 101,864,182,299.41/369,522.45
  6. Step 6: Final answer
    x = 275,664.39

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1.5x scale

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.