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Finding the Fourth Proportional to 492,441.54, 679,569.50 and 266,087.04

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Solution

The fourth proportional to 492,441.54, 679,569.50 and 266,087.04 is: 367,200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,441.54 : 679,569.50 = 266,087.04 : x
  2. Step 2: Convert to fraction form
    492,441.54/679,569.50 = 266,087.04/x
  3. Step 3: Cross multiply
    492,441.54x = 679,569.50 × 266,087.04
  4. Step 4: Simplify right side
    492,441.54x = 180,824,636,729.28
  5. Step 5: Solve for x
    x = 180,824,636,729.28/492,441.54
  6. Step 6: Final answer
    x = 367,200.21

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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.