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Finding the Fourth Proportional to 643,698.57, 966,183.46 and 483,216.51

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Solution

The fourth proportional to 643,698.57, 966,183.46 and 483,216.51 is: 725,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,698.57 : 966,183.46 = 483,216.51 : x
  2. Step 2: Convert to fraction form
    643,698.57/966,183.46 = 483,216.51/x
  3. Step 3: Cross multiply
    643,698.57x = 966,183.46 × 483,216.51
  4. Step 4: Simplify right side
    643,698.57x = 466,875,799,560.93
  5. Step 5: Solve for x
    x = 466,875,799,560.93/643,698.57
  6. Step 6: Final answer
    x = 725,301.91

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Double scale
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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.