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Finding the Fourth Proportional to 1,618,464, 2,427,812.64 and 621,192

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Solution

The fourth proportional to 1,618,464, 2,427,812.64 and 621,192 is: 931,832.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,464 : 2,427,812.64 = 621,192 : x
  2. Step 2: Convert to fraction form
    1,618,464/2,427,812.64 = 621,192/x
  3. Step 3: Cross multiply
    1,618,464x = 2,427,812.64 × 621,192
  4. Step 4: Simplify right side
    1,618,464x = 1,508,137,789,466.88
  5. Step 5: Solve for x
    x = 1,508,137,789,466.88/1,618,464
  6. Step 6: Final answer
    x = 931,832.77

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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.