Home / 1,288,448.19-1,932,011.18-681,564.06

Finding the Fourth Proportional to 1,288,448.19, 1,932,011.18 and 681,564.06

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Solution

The fourth proportional to 1,288,448.19, 1,932,011.18 and 681,564.06 is: 1,021,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,448.19 : 1,932,011.18 = 681,564.06 : x
  2. Step 2: Convert to fraction form
    1,288,448.19/1,932,011.18 = 681,564.06/x
  3. Step 3: Cross multiply
    1,288,448.19x = 1,932,011.18 × 681,564.06
  4. Step 4: Simplify right side
    1,288,448.19x = 1,316,789,395,818.02
  5. Step 5: Solve for x
    x = 1,316,789,395,818.02/1,288,448.19
  6. Step 6: Final answer
    x = 1,021,996.39

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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.