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Finding the Fourth Proportional to 1,398,981.70, 1,930,594.73 and 795,369.70

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Solution

The fourth proportional to 1,398,981.70, 1,930,594.73 and 795,369.70 is: 1,097,610.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,981.70 : 1,930,594.73 = 795,369.70 : x
  2. Step 2: Convert to fraction form
    1,398,981.70/1,930,594.73 = 795,369.70/x
  3. Step 3: Cross multiply
    1,398,981.70x = 1,930,594.73 × 795,369.70
  4. Step 4: Simplify right side
    1,398,981.70x = 1,535,536,551,221.68
  5. Step 5: Solve for x
    x = 1,535,536,551,221.68/1,398,981.70
  6. Step 6: Final answer
    x = 1,097,610.18

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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.