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Finding the Fourth Proportional to 638,003.08, 957,144.75 and 188,688.92

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Solution

The fourth proportional to 638,003.08, 957,144.75 and 188,688.92 is: 283,074.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,003.08 : 957,144.75 = 188,688.92 : x
  2. Step 2: Convert to fraction form
    638,003.08/957,144.75 = 188,688.92/x
  3. Step 3: Cross multiply
    638,003.08x = 957,144.75 × 188,688.92
  4. Step 4: Simplify right side
    638,003.08x = 180,602,606,359.83
  5. Step 5: Solve for x
    x = 180,602,606,359.83/638,003.08
  6. Step 6: Final answer
    x = 283,074.82

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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.