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Finding the Fourth Proportional to 1,870,677.03, 2,579,812.69 and 1,225,863.03

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Solution

The fourth proportional to 1,870,677.03, 2,579,812.69 and 1,225,863.03 is: 1,690,562.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870,677.03 : 2,579,812.69 = 1,225,863.03 : x
  2. Step 2: Convert to fraction form
    1,870,677.03/2,579,812.69 = 1,225,863.03/x
  3. Step 3: Cross multiply
    1,870,677.03x = 2,579,812.69 × 1,225,863.03
  4. Step 4: Simplify right side
    1,870,677.03x = 3,162,497,000,995.85
  5. Step 5: Solve for x
    x = 3,162,497,000,995.85/1,870,677.03
  6. Step 6: Final answer
    x = 1,690,562.80

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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.