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Finding the Fourth Proportional to 643,697.57, 966,181.96 and 483,215.51

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Solution

The fourth proportional to 643,697.57, 966,181.96 and 483,215.51 is: 725,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,697.57 : 966,181.96 = 483,215.51 : x
  2. Step 2: Convert to fraction form
    643,697.57/966,181.96 = 483,215.51/x
  3. Step 3: Cross multiply
    643,697.57x = 966,181.96 × 483,215.51
  4. Step 4: Simplify right side
    643,697.57x = 466,874,108,855.59
  5. Step 5: Solve for x
    x = 466,874,108,855.59/643,697.57
  6. Step 6: Final answer
    x = 725,300.40

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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.