Home / 957,215.31-1,320,940.11-521,636.55

Finding the Fourth Proportional to 957,215.31, 1,320,940.11 and 521,636.55

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Solution

The fourth proportional to 957,215.31, 1,320,940.11 and 521,636.55 is: 719,849.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,215.31 : 1,320,940.11 = 521,636.55 : x
  2. Step 2: Convert to fraction form
    957,215.31/1,320,940.11 = 521,636.55/x
  3. Step 3: Cross multiply
    957,215.31x = 1,320,940.11 × 521,636.55
  4. Step 4: Simplify right side
    957,215.31x = 689,050,641,737.02
  5. Step 5: Solve for x
    x = 689,050,641,737.02/957,215.31
  6. Step 6: Final answer
    x = 719,849.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.