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Finding the Fourth Proportional to 608,209.60, 912,400.80 and 187,441.60

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Solution

The fourth proportional to 608,209.60, 912,400.80 and 187,441.60 is: 281,189.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,209.60 : 912,400.80 = 187,441.60 : x
  2. Step 2: Convert to fraction form
    608,209.60/912,400.80 = 187,441.60/x
  3. Step 3: Cross multiply
    608,209.60x = 912,400.80 × 187,441.60
  4. Step 4: Simplify right side
    608,209.60x = 171,021,865,793.28
  5. Step 5: Solve for x
    x = 171,021,865,793.28/608,209.60
  6. Step 6: Final answer
    x = 281,189.03

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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.