Home / 1,309,557.11-1,963,675.34-398,564.82

Finding the Fourth Proportional to 1,309,557.11, 1,963,675.34 and 398,564.82

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Solution

The fourth proportional to 1,309,557.11, 1,963,675.34 and 398,564.82 is: 597,646.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,557.11 : 1,963,675.34 = 398,564.82 : x
  2. Step 2: Convert to fraction form
    1,309,557.11/1,963,675.34 = 398,564.82/x
  3. Step 3: Cross multiply
    1,309,557.11x = 1,963,675.34 × 398,564.82
  4. Step 4: Simplify right side
    1,309,557.11x = 782,651,906,432.72
  5. Step 5: Solve for x
    x = 782,651,906,432.72/1,309,557.11
  6. Step 6: Final answer
    x = 597,646.26

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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.