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Finding the Fourth Proportional to 293,792.40, 441,223.20 and 257,050.80

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Solution

The fourth proportional to 293,792.40, 441,223.20 and 257,050.80 is: 386,043.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,792.40 : 441,223.20 = 257,050.80 : x
  2. Step 2: Convert to fraction form
    293,792.40/441,223.20 = 257,050.80/x
  3. Step 3: Cross multiply
    293,792.40x = 441,223.20 × 257,050.80
  4. Step 4: Simplify right side
    293,792.40x = 113,416,776,538.56
  5. Step 5: Solve for x
    x = 113,416,776,538.56/293,792.40
  6. Step 6: Final answer
    x = 386,043.94

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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.