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Finding the Fourth Proportional to 1,913,728, 2,870,592 and 791,826.16

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Solution

The fourth proportional to 1,913,728, 2,870,592 and 791,826.16 is: 1,187,739.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,728 : 2,870,592 = 791,826.16 : x
  2. Step 2: Convert to fraction form
    1,913,728/2,870,592 = 791,826.16/x
  3. Step 3: Cross multiply
    1,913,728x = 2,870,592 × 791,826.16
  4. Step 4: Simplify right side
    1,913,728x = 2,273,009,840,286.72
  5. Step 5: Solve for x
    x = 2,273,009,840,286.72/1,913,728
  6. Step 6: Final answer
    x = 1,187,739.24

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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.