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Finding the Fourth Proportional to 608,208.60, 912,399.30 and 187,440.60

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Solution

The fourth proportional to 608,208.60, 912,399.30 and 187,440.60 is: 281,187.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,208.60 : 912,399.30 = 187,440.60 : x
  2. Step 2: Convert to fraction form
    608,208.60/912,399.30 = 187,440.60/x
  3. Step 3: Cross multiply
    608,208.60x = 912,399.30 × 187,440.60
  4. Step 4: Simplify right side
    608,208.60x = 171,020,672,231.58
  5. Step 5: Solve for x
    x = 171,020,672,231.58/608,208.60
  6. Step 6: Final answer
    x = 281,187.53

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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.