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Finding the Fourth Proportional to 689,025.92, 950,806.72 and 387,265.92

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Solution

The fourth proportional to 689,025.92, 950,806.72 and 387,265.92 is: 534,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,025.92 : 950,806.72 = 387,265.92 : x
  2. Step 2: Convert to fraction form
    689,025.92/950,806.72 = 387,265.92/x
  3. Step 3: Cross multiply
    689,025.92x = 950,806.72 × 387,265.92
  4. Step 4: Simplify right side
    689,025.92x = 368,215,039,162.98
  5. Step 5: Solve for x
    x = 368,215,039,162.98/689,025.92
  6. Step 6: Final answer
    x = 534,399.40

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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.