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Finding the Fourth Proportional to 456,475.70, 684,713.55 and 448,699.70

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Solution

The fourth proportional to 456,475.70, 684,713.55 and 448,699.70 is: 673,049.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,475.70 : 684,713.55 = 448,699.70 : x
  2. Step 2: Convert to fraction form
    456,475.70/684,713.55 = 448,699.70/x
  3. Step 3: Cross multiply
    456,475.70x = 684,713.55 × 448,699.70
  4. Step 4: Simplify right side
    456,475.70x = 307,230,764,470.94
  5. Step 5: Solve for x
    x = 307,230,764,470.94/456,475.70
  6. Step 6: Final answer
    x = 673,049.55

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Similar ratio
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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.