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Finding the Fourth Proportional to 348,911.60, 522,071.40 and 255,599.60

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Solution

The fourth proportional to 348,911.60, 522,071.40 and 255,599.60 is: 382,450.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,911.60 : 522,071.40 = 255,599.60 : x
  2. Step 2: Convert to fraction form
    348,911.60/522,071.40 = 255,599.60/x
  3. Step 3: Cross multiply
    348,911.60x = 522,071.40 × 255,599.60
  4. Step 4: Simplify right side
    348,911.60x = 133,441,241,011.44
  5. Step 5: Solve for x
    x = 133,441,241,011.44/348,911.60
  6. Step 6: Final answer
    x = 382,450.00

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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.