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Finding the Fourth Proportional to 5,133,509.79, 7,707,834.45 and 2,863,469.40

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Solution

The fourth proportional to 5,133,509.79, 7,707,834.45 and 2,863,469.40 is: 4,299,426.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133,509.79 : 7,707,834.45 = 2,863,469.40 : x
  2. Step 2: Convert to fraction form
    5,133,509.79/7,707,834.45 = 2,863,469.40/x
  3. Step 3: Cross multiply
    5,133,509.79x = 7,707,834.45 × 2,863,469.40
  4. Step 4: Simplify right side
    5,133,509.79x = 22,071,148,087,840.83
  5. Step 5: Solve for x
    x = 22,071,148,087,840.83/5,133,509.79
  6. Step 6: Final answer
    x = 4,299,426.51

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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.