Home / 1,288,193.74-1,932,290.64-341,638.30

Finding the Fourth Proportional to 1,288,193.74, 1,932,290.64 and 341,638.30

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Solution

The fourth proportional to 1,288,193.74, 1,932,290.64 and 341,638.30 is: 512,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,193.74 : 1,932,290.64 = 341,638.30 : x
  2. Step 2: Convert to fraction form
    1,288,193.74/1,932,290.64 = 341,638.30/x
  3. Step 3: Cross multiply
    1,288,193.74x = 1,932,290.64 × 341,638.30
  4. Step 4: Simplify right side
    1,288,193.74x = 660,144,489,355.51
  5. Step 5: Solve for x
    x = 660,144,489,355.51/1,288,193.74
  6. Step 6: Final answer
    x = 512,457.46

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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.