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Finding the Fourth Proportional to 369,812.40, 553,314.60 and 245,396.40

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Solution

The fourth proportional to 369,812.40, 553,314.60 and 245,396.40 is: 367,162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,812.40 : 553,314.60 = 245,396.40 : x
  2. Step 2: Convert to fraction form
    369,812.40/553,314.60 = 245,396.40/x
  3. Step 3: Cross multiply
    369,812.40x = 553,314.60 × 245,396.40
  4. Step 4: Simplify right side
    369,812.40x = 135,781,410,907.44
  5. Step 5: Solve for x
    x = 135,781,410,907.44/369,812.40
  6. Step 6: Final answer
    x = 367,162.95

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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.