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Finding the Fourth Proportional to 672,202.27, 927,016 and 490,626.60

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Solution

The fourth proportional to 672,202.27, 927,016 and 490,626.60 is: 676,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,202.27 : 927,016 = 490,626.60 : x
  2. Step 2: Convert to fraction form
    672,202.27/927,016 = 490,626.60/x
  3. Step 3: Cross multiply
    672,202.27x = 927,016 × 490,626.60
  4. Step 4: Simplify right side
    672,202.27x = 454,818,708,225.60
  5. Step 5: Solve for x
    x = 454,818,708,225.60/672,202.27
  6. Step 6: Final answer
    x = 676,609.90

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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.