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Finding the Fourth Proportional to 608,011.20, 912,114.82 and 187,286.68

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Solution

The fourth proportional to 608,011.20, 912,114.82 and 187,286.68 is: 280,960.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,011.20 : 912,114.82 = 187,286.68 : x
  2. Step 2: Convert to fraction form
    608,011.20/912,114.82 = 187,286.68/x
  3. Step 3: Cross multiply
    608,011.20x = 912,114.82 × 187,286.68
  4. Step 4: Simplify right side
    608,011.20x = 170,826,956,416.60
  5. Step 5: Solve for x
    x = 170,826,956,416.60/608,011.20
  6. Step 6: Final answer
    x = 280,960.21

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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.