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Finding the Fourth Proportional to 620,451.59, 930,730.99 and 171,172.46

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Solution

The fourth proportional to 620,451.59, 930,730.99 and 171,172.46 is: 256,773.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,451.59 : 930,730.99 = 171,172.46 : x
  2. Step 2: Convert to fraction form
    620,451.59/930,730.99 = 171,172.46/x
  3. Step 3: Cross multiply
    620,451.59x = 930,730.99 × 171,172.46
  4. Step 4: Simplify right side
    620,451.59x = 159,315,508,716.85
  5. Step 5: Solve for x
    x = 159,315,508,716.85/620,451.59
  6. Step 6: Final answer
    x = 256,773.47

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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.