Home / 1,215,884.28-1,677,868.11-671,991.96

Finding the Fourth Proportional to 1,215,884.28, 1,677,868.11 and 671,991.96

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Solution

The fourth proportional to 1,215,884.28, 1,677,868.11 and 671,991.96 is: 927,320.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,884.28 : 1,677,868.11 = 671,991.96 : x
  2. Step 2: Convert to fraction form
    1,215,884.28/1,677,868.11 = 671,991.96/x
  3. Step 3: Cross multiply
    1,215,884.28x = 1,677,868.11 × 671,991.96
  4. Step 4: Simplify right side
    1,215,884.28x = 1,127,513,879,860.40
  5. Step 5: Solve for x
    x = 1,127,513,879,860.40/1,215,884.28
  6. Step 6: Final answer
    x = 927,320.06

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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.