Home / 1,291,215.81-1,938,037.19-676,161.24

Finding the Fourth Proportional to 1,291,215.81, 1,938,037.19 and 676,161.24

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Solution

The fourth proportional to 1,291,215.81, 1,938,037.19 and 676,161.24 is: 1,014,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,215.81 : 1,938,037.19 = 676,161.24 : x
  2. Step 2: Convert to fraction form
    1,291,215.81/1,938,037.19 = 676,161.24/x
  3. Step 3: Cross multiply
    1,291,215.81x = 1,938,037.19 × 676,161.24
  4. Step 4: Simplify right side
    1,291,215.81x = 1,310,425,622,647.82
  5. Step 5: Solve for x
    x = 1,310,425,622,647.82/1,291,215.81
  6. Step 6: Final answer
    x = 1,014,877.30

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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.