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Finding the Fourth Proportional to 696,606.20, 960,426.60 and 451,157.30

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Solution

The fourth proportional to 696,606.20, 960,426.60 and 451,157.30 is: 622,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,606.20 : 960,426.60 = 451,157.30 : x
  2. Step 2: Convert to fraction form
    696,606.20/960,426.60 = 451,157.30/x
  3. Step 3: Cross multiply
    696,606.20x = 960,426.60 × 451,157.30
  4. Step 4: Simplify right side
    696,606.20x = 433,303,471,704.18
  5. Step 5: Solve for x
    x = 433,303,471,704.18/696,606.20
  6. Step 6: Final answer
    x = 622,020.69

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Double scale
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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.