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Finding the Fourth Proportional to 753,114, 1,039,037.48 and 481,340.96

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Solution

The fourth proportional to 753,114, 1,039,037.48 and 481,340.96 is: 664,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,114 : 1,039,037.48 = 481,340.96 : x
  2. Step 2: Convert to fraction form
    753,114/1,039,037.48 = 481,340.96/x
  3. Step 3: Cross multiply
    753,114x = 1,039,037.48 × 481,340.96
  4. Step 4: Simplify right side
    753,114x = 500,131,298,099.18
  5. Step 5: Solve for x
    x = 500,131,298,099.18/753,114
  6. Step 6: Final answer
    x = 664,084.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.