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Finding the Fourth Proportional to 1,100,553.85, 1,543,574.75 and 1,100,553.85

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Solution

The fourth proportional to 1,100,553.85, 1,543,574.75 and 1,100,553.85 is: 1,543,574.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,553.85 : 1,543,574.75 = 1,100,553.85 : x
  2. Step 2: Convert to fraction form
    1,100,553.85/1,543,574.75 = 1,100,553.85/x
  3. Step 3: Cross multiply
    1,100,553.85x = 1,543,574.75 × 1,100,553.85
  4. Step 4: Simplify right side
    1,100,553.85x = 1,698,787,133,875.29
  5. Step 5: Solve for x
    x = 1,698,787,133,875.29/1,100,553.85
  6. Step 6: Final answer
    x = 1,543,574.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.