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Finding the Fourth Proportional to 660,874.92, 991,313.10 and 181,106.82

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Solution

The fourth proportional to 660,874.92, 991,313.10 and 181,106.82 is: 271,660.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,874.92 : 991,313.10 = 181,106.82 : x
  2. Step 2: Convert to fraction form
    660,874.92/991,313.10 = 181,106.82/x
  3. Step 3: Cross multiply
    660,874.92x = 991,313.10 × 181,106.82
  4. Step 4: Simplify right side
    660,874.92x = 179,533,563,165.34
  5. Step 5: Solve for x
    x = 179,533,563,165.34/660,874.92
  6. Step 6: Final answer
    x = 271,660.43

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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.