Home / 1,272,388.17-1,755,897.57-699,431.85

Finding the Fourth Proportional to 1,272,388.17, 1,755,897.57 and 699,431.85

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Solution

The fourth proportional to 1,272,388.17, 1,755,897.57 and 699,431.85 is: 965,216.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,388.17 : 1,755,897.57 = 699,431.85 : x
  2. Step 2: Convert to fraction form
    1,272,388.17/1,755,897.57 = 699,431.85/x
  3. Step 3: Cross multiply
    1,272,388.17x = 1,755,897.57 × 699,431.85
  4. Step 4: Simplify right side
    1,272,388.17x = 1,228,130,685,795.60
  5. Step 5: Solve for x
    x = 1,228,130,685,795.60/1,272,388.17
  6. Step 6: Final answer
    x = 965,216.99

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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.