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Finding the Fourth Proportional to 1,618,465, 2,427,814.16 and 621,193

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Solution

The fourth proportional to 1,618,465, 2,427,814.16 and 621,193 is: 931,834.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,465 : 2,427,814.16 = 621,193 : x
  2. Step 2: Convert to fraction form
    1,618,465/2,427,814.16 = 621,193/x
  3. Step 3: Cross multiply
    1,618,465x = 2,427,814.16 × 621,193
  4. Step 4: Simplify right side
    1,618,465x = 1,508,141,161,492.88
  5. Step 5: Solve for x
    x = 1,508,141,161,492.88/1,618,465
  6. Step 6: Final answer
    x = 931,834.28

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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.