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Finding the Fourth Proportional to 1,955,916.27, 2,932,178.27 and 757,013.40

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Solution

The fourth proportional to 1,955,916.27, 2,932,178.27 and 757,013.40 is: 1,134,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955,916.27 : 2,932,178.27 = 757,013.40 : x
  2. Step 2: Convert to fraction form
    1,955,916.27/2,932,178.27 = 757,013.40/x
  3. Step 3: Cross multiply
    1,955,916.27x = 2,932,178.27 × 757,013.40
  4. Step 4: Simplify right side
    1,955,916.27x = 2,219,698,237,793.75
  5. Step 5: Solve for x
    x = 2,219,698,237,793.75/1,955,916.27
  6. Step 6: Final answer
    x = 1,134,863.63

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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.