Home / 1,677,662.88-2,515,534.74-778,641.72

Finding the Fourth Proportional to 1,677,662.88, 2,515,534.74 and 778,641.72

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Solution

The fourth proportional to 1,677,662.88, 2,515,534.74 and 778,641.72 is: 1,167,517.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677,662.88 : 2,515,534.74 = 778,641.72 : x
  2. Step 2: Convert to fraction form
    1,677,662.88/2,515,534.74 = 778,641.72/x
  3. Step 3: Cross multiply
    1,677,662.88x = 2,515,534.74 × 778,641.72
  4. Step 4: Simplify right side
    1,677,662.88x = 1,958,700,296,673.35
  5. Step 5: Solve for x
    x = 1,958,700,296,673.35/1,677,662.88
  6. Step 6: Final answer
    x = 1,167,517.22

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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.