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Finding the Fourth Proportional to 531,815.50, 797,275.80 and 247,361.50

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Solution

The fourth proportional to 531,815.50, 797,275.80 and 247,361.50 is: 370,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,815.50 : 797,275.80 = 247,361.50 : x
  2. Step 2: Convert to fraction form
    531,815.50/797,275.80 = 247,361.50/x
  3. Step 3: Cross multiply
    531,815.50x = 797,275.80 × 247,361.50
  4. Step 4: Simplify right side
    531,815.50x = 197,215,337,801.70
  5. Step 5: Solve for x
    x = 197,215,337,801.70/531,815.50
  6. Step 6: Final answer
    x = 370,834.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.