Home / 1,392,405.18-2,086,991.40-527,290.17

Finding the Fourth Proportional to 1,392,405.18, 2,086,991.40 and 527,290.17

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Solution

The fourth proportional to 1,392,405.18, 2,086,991.40 and 527,290.17 is: 790,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,405.18 : 2,086,991.40 = 527,290.17 : x
  2. Step 2: Convert to fraction form
    1,392,405.18/2,086,991.40 = 527,290.17/x
  3. Step 3: Cross multiply
    1,392,405.18x = 2,086,991.40 × 527,290.17
  4. Step 4: Simplify right side
    1,392,405.18x = 1,100,450,050,094.54
  5. Step 5: Solve for x
    x = 1,100,450,050,094.54/1,392,405.18
  6. Step 6: Final answer
    x = 790,323.15

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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.