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Finding the Fourth Proportional to 610,172.20, 915,248.49 and 189,448.48

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Solution

The fourth proportional to 610,172.20, 915,248.49 and 189,448.48 is: 284,169.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,172.20 : 915,248.49 = 189,448.48 : x
  2. Step 2: Convert to fraction form
    610,172.20/915,248.49 = 189,448.48/x
  3. Step 3: Cross multiply
    610,172.20x = 915,248.49 × 189,448.48
  4. Step 4: Simplify right side
    610,172.20x = 173,392,435,252.80
  5. Step 5: Solve for x
    x = 173,392,435,252.80/610,172.20
  6. Step 6: Final answer
    x = 284,169.67

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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.