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Finding the Fourth Proportional to 408,033.70, 612,050.55 and 186,849.70

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Solution

The fourth proportional to 408,033.70, 612,050.55 and 186,849.70 is: 280,274.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,033.70 : 612,050.55 = 186,849.70 : x
  2. Step 2: Convert to fraction form
    408,033.70/612,050.55 = 186,849.70/x
  3. Step 3: Cross multiply
    408,033.70x = 612,050.55 × 186,849.70
  4. Step 4: Simplify right side
    408,033.70x = 114,361,461,652.34
  5. Step 5: Solve for x
    x = 114,361,461,652.34/408,033.70
  6. Step 6: Final answer
    x = 280,274.55

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1.5x scale

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.