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Finding the Fourth Proportional to 472,873.60, 709,310.40 and 192,246.40

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Solution

The fourth proportional to 472,873.60, 709,310.40 and 192,246.40 is: 288,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,873.60 : 709,310.40 = 192,246.40 : x
  2. Step 2: Convert to fraction form
    472,873.60/709,310.40 = 192,246.40/x
  3. Step 3: Cross multiply
    472,873.60x = 709,310.40 × 192,246.40
  4. Step 4: Simplify right side
    472,873.60x = 136,362,370,882.56
  5. Step 5: Solve for x
    x = 136,362,370,882.56/472,873.60
  6. Step 6: Final answer
    x = 288,369.60

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Similar ratio
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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.