Home / 1,328,577.52-1,993,182.64-430,019.41

Finding the Fourth Proportional to 1,328,577.52, 1,993,182.64 and 430,019.41

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Solution

The fourth proportional to 1,328,577.52, 1,993,182.64 and 430,019.41 is: 645,131.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,577.52 : 1,993,182.64 = 430,019.41 : x
  2. Step 2: Convert to fraction form
    1,328,577.52/1,993,182.64 = 430,019.41/x
  3. Step 3: Cross multiply
    1,328,577.52x = 1,993,182.64 × 430,019.41
  4. Step 4: Simplify right side
    1,328,577.52x = 857,107,212,909.13
  5. Step 5: Solve for x
    x = 857,107,212,909.13/1,328,577.52
  6. Step 6: Final answer
    x = 645,131.51

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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.