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Finding the Fourth Proportional to 608,219.28, 912,270.60 and 187,382.16

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Solution

The fourth proportional to 608,219.28, 912,270.60 and 187,382.16 is: 281,055.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,219.28 : 912,270.60 = 187,382.16 : x
  2. Step 2: Convert to fraction form
    608,219.28/912,270.60 = 187,382.16/x
  3. Step 3: Cross multiply
    608,219.28x = 912,270.60 × 187,382.16
  4. Step 4: Simplify right side
    608,219.28x = 170,943,235,532.50
  5. Step 5: Solve for x
    x = 170,943,235,532.50/608,219.28
  6. Step 6: Final answer
    x = 281,055.27

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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.