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Finding the Fourth Proportional to 1,008,465.10, 1,412,900.90 and 1,008,465.10

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Solution

The fourth proportional to 1,008,465.10, 1,412,900.90 and 1,008,465.10 is: 1,412,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,465.10 : 1,412,900.90 = 1,008,465.10 : x
  2. Step 2: Convert to fraction form
    1,008,465.10/1,412,900.90 = 1,008,465.10/x
  3. Step 3: Cross multiply
    1,008,465.10x = 1,412,900.90 × 1,008,465.10
  4. Step 4: Simplify right side
    1,008,465.10x = 1,424,861,247,408.59
  5. Step 5: Solve for x
    x = 1,424,861,247,408.59/1,008,465.10
  6. Step 6: Final answer
    x = 1,412,900.90

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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.