Home / 1,272,186.41-1,755,630.82-691,409.52

Finding the Fourth Proportional to 1,272,186.41, 1,755,630.82 and 691,409.52

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Solution

The fourth proportional to 1,272,186.41, 1,755,630.82 and 691,409.52 is: 954,152.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,186.41 : 1,755,630.82 = 691,409.52 : x
  2. Step 2: Convert to fraction form
    1,272,186.41/1,755,630.82 = 691,409.52/x
  3. Step 3: Cross multiply
    1,272,186.41x = 1,755,630.82 × 691,409.52
  4. Step 4: Simplify right side
    1,272,186.41x = 1,213,859,863,417.67
  5. Step 5: Solve for x
    x = 1,213,859,863,417.67/1,272,186.41
  6. Step 6: Final answer
    x = 954,152.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.