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Finding the Fourth Proportional to 408,035.40, 610,886.70 and 250,571.40

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Solution

The fourth proportional to 408,035.40, 610,886.70 and 250,571.40 is: 375,140.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,035.40 : 610,886.70 = 250,571.40 : x
  2. Step 2: Convert to fraction form
    408,035.40/610,886.70 = 250,571.40/x
  3. Step 3: Cross multiply
    408,035.40x = 610,886.70 × 250,571.40
  4. Step 4: Simplify right side
    408,035.40x = 153,070,735,660.38
  5. Step 5: Solve for x
    x = 153,070,735,660.38/408,035.40
  6. Step 6: Final answer
    x = 375,140.82

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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.